| 2019-02-22 | Definition of the word "Osteopetrosis" | 0:31 | 9 | |
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| 2019-02-22 | Definition of the word "Bam" | 0:29 | 113 | |
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| 2019-02-22 | Definition of the word "Artificial insemination" | 0:32 | 37 | |
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| 2019-02-22 | Definition of the word "Agranulocytosis" | 0:28 | 35 | |
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| 2019-02-22 | Definition of the word "Agglutinogen" | 0:27 | 92 | |
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| 2019-02-22 | Definition of the word "Agglutinin" | 0:27 | 29 | |
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| 2019-02-22 | Definition of the word "Stickiness" | 0:25 | 11 | |
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| 2019-02-22 | Definition of the word "Ageing" | 0:35 | 52 | |
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| 2019-02-22 | Definition of the word "Age group" | 0:28 | 78 | |
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| 2019-02-22 | Definition of the word "Agar" | 0:43 | 94 | |
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| 2019-02-22 | Definition of the word "Agamete" | 0:25 | 2 | |
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| 2019-02-22 | Definition of the word "Africanized honey bee" | 0:35 | 9 | |
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| 2019-02-22 | Definition of the word "Afibrinogenemia" | 0:28 | 36 | |
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| 2019-02-22 | Definition of the word "Aestivate" | 0:31 | 34 | |
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| 2019-02-22 | Definition of the word "Adventitious" | 1:00 | 90 | |
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| 2019-02-22 | Definition of the word "Adrenocorticotropic hormone" | 0:34 | 9 | |
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| 2019-02-22 | Definition of the word "Adrenalin" | 0:35 | 33 | |
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| 2019-02-22 | Definition of the word "Adp" | 0:29 | 116 | |
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| 2019-02-22 | Definition of the word "Adipocyte" | 0:30 | 2 | |
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| 2019-02-22 | Definition of the word "Adh" | 0:46 | 10 | |
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| 2019-02-22 | Definition of the word "Adenosine triphosphate" | 0:38 | 13 | |
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| 2019-02-22 | Definition of the word "Amp" | 0:56 | 60 | |
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| 2019-02-22 | Definition of the word "Adenosine monophosphate" | 0:30 | 6 | |
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| 2019-02-22 | Definition of the word "Adenosine diphosphate" | 0:28 | 24 | |
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| 2019-02-22 | Definition of the word "Adenosine deaminase" | 0:44 | 13 | |
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| 2019-02-22 | Definition of the word "Adenosine" | 0:48 | 2 | |
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| 2019-02-22 | Definition of the word "Adduct" | 0:43 | 150 | |
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| 2019-02-22 | Definition of the word "Adaptive radiation" | 0:31 | 8 | |
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| 2019-02-22 | Definition of the word "Actomyosin" | 0:31 | 12 | |
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| 2019-02-22 | Definition of the word "Active site" | 0:27 | 54 | |
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| 2019-02-22 | Definition of the word "Activator" | 0:46 | 73 | |
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| 2019-02-22 | Definition of the word "Actin" | 0:29 | 20 | |
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| 2019-02-22 | Definition of the word "Acrosome" | 0:28 | 66 | |
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| 2019-02-22 | Definition of the word "Acrocentric chromosome" | 0:28 | 8 | |
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| 2019-02-22 | Definition of the word "Achromatin" | 0:26 | 2 | |
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| 2019-02-22 | Definition of the word "Achondroplasia" | 0:30 | 16 | |
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| 2019-02-22 | Definition of the word "Acetylcholine" | 0:32 | 10 | |
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| 2019-02-22 | Definition of the word "Acetylation" | 0:34 | 33 | |
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| 2019-02-22 | Definition of the word "Acentric chromosome" | 0:25 | 31 | |
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| 2019-02-22 | Definition of the word "Abundance" | 1:02 | 33 | |
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| 2019-02-22 | Definition of the word "Abortion" | 0:35 | 18 | |
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| 2019-02-22 | Definition of the word "Abiotrophy" | 0:28 | 1 | |
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| 2019-02-22 | Definition of the word "Abnormal psychology" | 0:27 | 12 | Vlog |
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| 2019-02-22 | Definition of the word "Abnegate" | 0:47 | 43 | |
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| 2019-02-22 | Definition of the word "Ablush" | 0:25 | 11 | |
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| 2019-02-22 | Definition of the word "Abloom" | 0:29 | 35 | |
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| 2019-02-22 | Definition of the word "Ablactation" | 0:45 | 47 | |
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| 2019-02-22 | Definition of the word "Abjure" | 0:45 | 22 | |
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| 2019-02-22 | Definition of the word "Abiding" | 0:30 | 34 | |
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| 2019-02-22 | Definition of the word "Abide" | 1:13 | 87 | |
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| 2019-02-22 | Definition of the word "Abidance" | 0:33 | 112 | |
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| 2019-02-22 | Definition of the word "Abhorrent" | 0:41 | 40 | |
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| 2019-02-22 | Definition of the word "Abhor" | 0:34 | 81 | |
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| 2019-02-22 | Definition of the word "Above all" | 0:39 | 46 | |
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| 2019-02-22 | Definition of the word "Seaman" | 0:30 | 41 | |
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| 2019-02-22 | Definition of the word "Above" | 1:00 | 71 | |
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| 2019-02-22 | Definition of the word "Able-bodied seaman" | 0:31 | 13 | |
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| 2019-02-22 | Definition of the word "Able-bodied" | 0:32 | 9 | |
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| 2019-02-22 | Definition of the word "Abatvoix" | 0:25 | 0 | |
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| 2019-02-22 | Definition of the word "Fitness" | 0:47 | 17 | |
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| 2019-02-21 | Definition of the word "Presage" | 0:36 | 86 | |
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| 2019-02-21 | Definition of the word "Lopa" | 0:24 | 181 | |
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| 2019-02-21 | Definition of the word "Abb" | 0:34 | 116 | |
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| 2019-02-21 | Definition of the word "In abeyance" | 0:24 | 7 | |
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| 2019-02-21 | Definition of the word "Abettor" | 0:30 | 63 | |
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| 2019-02-21 | Definition of the word "Abet" | 0:33 | 32 | |
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| 2019-02-21 | Definition of the word "Aberrant" | 0:42 | 44 | |
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| 2019-02-21 | Definition of the word "Aberrance" | 0:35 | 18 | |
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| 2019-02-21 | Definition of the word "Abed" | 0:29 | 65 | |
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| 2019-02-21 | Definition of the word "Abecedarian" | 0:46 | 29 | |
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| 2019-02-21 | Definition of the word "Abeam" | 0:34 | 164 | |
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| 2019-02-21 | Definition of the word "Abductor" | 0:39 | 4 | |
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| 2019-02-21 | Definition of the word "Abaft" | 0:42 | 38 | |
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| 2019-02-21 | Definition of the word "Pu" | 1:10 | 364 | |
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| 2019-02-21 | Definition of the word "Abduct" | 0:51 | 13 | |
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| 2019-02-21 | Definition of the word "Abducent" | 0:39 | 7 | |
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| 2019-02-21 | Definition of the word "Abdominous" | 0:26 | 2 | |
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| 2019-02-21 | Definition of the word "Ocellus" | 0:29 | 20 | |
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| 2019-02-21 | Definition of the word "Abdicate" | 0:43 | 21 | |
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| 2019-02-21 | Definition of the word "Westminster abbey" | 0:55 | 7 | |
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| 2019-02-21 | Definition of the word "Abbess" | 0:35 | 18 | |
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| 2019-02-21 | Definition of the word "Abbacy" | 0:30 | 68 | |
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| 2019-02-21 | Definition of the word "Abashment" | 0:28 | 16 | |
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| 2019-02-21 | Definition of the word "Abashed" | 0:52 | 27 | |
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| 2019-02-21 | Definition of the word "Abash" | 0:27 | 19 | |
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| 2019-02-21 | Definition of the word "Abase" | 0:35 | 46 | |
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| 2019-02-21 | Definition of the word "Jewish" | 0:33 | 45 | |
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| 2019-02-21 | Definition of the word "Wilfully" | 0:27 | 22 | |
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| 2019-02-21 | Definition of the word "Wow" | 0:29 | 544 | |
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| 2019-02-21 | Definition of the word "Morgen" | 0:34 | 11 | |
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| 2019-02-21 | Definition of the word "Athena" | 0:30 | 31 | |
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| 2019-02-21 | Definition of the word "Equal" | 1:59 | 94 | |
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| 2019-02-21 | Definition of the word "Equally" | 0:57 | 51 | |
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| 2019-02-21 | Definition of the word "Distinguish" | 1:22 | 246 | |
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| 2019-02-21 | Definition of the word "Madi" | 0:27 | 794 | |
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| 2019-02-21 | Definition of the word "Neckerchief" | 0:25 | 5 | |
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| 2019-02-21 | Definition of the word "Sketch" | 1:18 | 98 | |
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| 2019-02-21 | Definition of the word "Cattail" | 0:29 | 6 | |
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| 2019-02-21 | Definition of the word "Overcast" | 1:10 | 87 | |
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| 2019-02-21 | Definition of the word "Painstaking" | 0:43 | 77 | |
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