allotype

[ al-uh-tahyp ]
/ ˈæl əˌtaɪp /

noun

Biology. a type specimen of the sex opposite to that of the holotype.
Immunology. an antibody of a given class having certain molecular sites shared by only some members of a species and therefore acting as an antigen to other members of the same species.

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Origin of allotype

1915–20; allo- + type; in immunological sense, probably back formation from allotypy < French allotypie, coined in 1956

OTHER WORDS FROM allotype

al·lo·typ·ic [al-uh-tip-ik] /ˌæl əˈtɪp ɪk/, adjectiveal·lo·typ·i·cal·ly, adverbal·lo·typ·y [al-uh-tahy-pee] /ˈæl əˌtaɪ pi/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for allotype

allotype
/ (ˈæləˌtaɪp) /

noun

biology an additional type specimen selected because of differences from the original type specimen, such as opposite sex or morphological details
immunol any of the variant forms of a particular immunoglobulin found among members of the same species
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

Medical definitions for allotype

allotype
[ ălə-tīp′ ]

n.

Any of the genetically determined variants in the constant region of a given subclass of immunoglobulin that is detectable as an antigen by members of the same species having a different constant region.

Other words from allotype

al′lo•typic (-tĭpĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.