American Heritage Dictionary
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Century Dictionary
GNU Webster's 1913
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WordNet
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Elsewhere on the web
Either vivisection is a good thing and hence should not be interfered with, or it is a nefarious business and should be stopped ....— An Ethical Problem Or, Sidelights upon Scientific Experimentation on Man and Animals
Vivisection has been looked up 198 times, favorited 3 times, listed 24 times, and commented on 4 times.

American Heritage Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word about twice a year.
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