- each of the morphologically distinct sections of the body of an arthropod, comprised of two or more segments, as the head, thorax, and abdomen of an insect.
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Examples from the Web for tagma
Eleven somites follow these, forming the abdominal “tagma,” giving thus twenty-one somites in all (as in the higher Crustacea).
- zoology a distinct region of the body of an arthropod, such as the head, thorax, or abdomen of an insect
C19: from Greek: something arranged, from tassein to put in order
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