prosimian
Americanadjective
noun
noun
adjective
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Any of various primates of the suborder Strepsirrhini (formerly Prosimii), considered the most primitive primates. Prosimians have a moist, bare muzzle and a retina that lacks a fovea but is backed by a reflective layer that increases night vision. Unlike other primates, female prosimians do not menstruate because the lining of their uteri is not built up each month to prepare for possible pregnancy. Prosimians are mostly small in size, and include the lemurs, aye-ayes, indris, and lorises. The tarsiers were once classified as prosimians but are now considered more closely related to the monkeys and apes.
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Compare simian
Etymology
Origin of prosimian
First recorded in 1860–65; from New Latin Prosīmi(ī) name of the suborder + suffix -an; pro- 1, simian, -an )
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The museum collected 25,000 pounds from one place in the 1990s, looking for prosimian primates, which it found.
From Washington Post • Mar. 10, 2017
By the end of the Eocene Epoch, many of the early prosimian species went extinct due either to cooler temperatures or competition from the first monkeys.
From Textbooks • Jan. 1, 2015
"The fossils were either true anthropoid or true prosimian; we've never found anything in between until now."
From Time Magazine Archive
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.