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capsid1

[kap-sid]
noun Microbiology.
  1. the coiled or polyhedral structure, composed of proteins, that encloses the nucleic acid of a virus.
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Origin of capsid1

1960–65; < French capside, equivalent to Latin caps(a) case2 + -ide -id1
Also called protein coat.

capsid2

[kap-sid]
noun
  1. plant bug.
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Origin of capsid2

< New Latin Capsidae, equivalent to Caps(us) a genus (said to have been formed on Greek kápsis a gulping down; káp(tein) to gulp down + -sis -sis) + -idae -id2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for capsid

Historical Examples

  • Of these, there are several species of Lygid, Coreid, and Capsid.

    Handbook of Medical Entomology

    William Albert Riley

  • Orthotylus flavosparsus is another Capsid which has been implicated.

    Handbook of Medical Entomology

    William Albert Riley


British Dictionary definitions for capsid

capsid1

noun
  1. any heteropterous bug of the family Miridae (formerly Capsidae), most of which feed on plant tissues, causing damage to crops
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Word Origin

C19: from New Latin Capsus (genus)

capsid2

noun
  1. the outer protein coat of a mature virus
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Word Origin

C20: from French capside, from Latin capsa box
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for capsid

adj.

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

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Online Etymology Dictionary, © 2010 Douglas Harper

capsid in Medicine

capsid

(kăpsĭd)
n.
  1. The protein shell that surrounds a virus particle.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

capsid in Science

capsid

[kăpsĭd]
  1. The protein shell that surrounds a virus particle (known as a virion). See more at virus.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.