Etymology
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capsid (adj.)

1889 in biology, "pertaining to capsidae," a type of insect, from Latin capsa "box" (see case (n.2)).

updated on January 24, 2013

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Definitions of capsid from WordNet

capsid (n.)
a variety of leaf bug;
Synonyms: mirid bug / mirid
capsid (n.)
the outer covering of protein surrounding the nucleic acid of a virus;
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.