sigmodont

See also: Sigmodont

English

Etymology

Ancient Greek σῖγμα (sîgma) + ὀδών (odṓn, “tooth”). So called from the form of the ridges of enamel on the crowns of the worn molars.

Noun

sigmodont (plural sigmodonts)

(zoology) Any of the Sigmodontinae tribe of rodents, including all the indigenous rats and mice of America.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “sigmodont”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)