astomatous

American

[ey-stom-uh-tuhs, ey-stoh-muh-] / eɪˈstɒm ə təs, eɪˈstoʊ mə- /

adjective

Zoology, Botany.

having no mouth, stoma, or stomata.

astomatous British

/ æˈstɒmətəs, -ˈstəʊ- /

adjective

(of animals) having no mouth
(of plants) having no stomata

"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

Etymology

Origin of astomatous

First recorded in 1850–55; a- ⁶ + stomatous

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.

Astomatous, as-tom′a-tus, adj. having no mouth, used of a division of the protozoa.

From Project Gutenberg

The Nauplii of the Cirripedia have to undergo several moults whilst in that form; the Nauplii of the Rhizocephala, being astomatous, cannot of course live long as Nauplii, and in the course of only a few days they become transformed into equally astomatous "pupae," as Darwin calls them.

From Project Gutenberg

Muller, Fritz, on astomatous males of Tanais; on the disappearance of spots and stripes in adult mammals; on the proportions of the sexes in some Crustacea; on secondary sexual characters in various Crustaceans; musical contest between male Cicadae; mode of holding wings in Castina; on birds shewing a preference for certain colours; on the sexual maturity of young amphipod Crustacea.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023