allantoid

[ uh-lan-toid ]
/ əˈlæn tɔɪd /

adjective

Also al·lan·toi·dal [al-uh n-toid-l] /ˌæl ənˈtɔɪd l/. allantoic.

noun

the allantois.

Origin of allantoid

1625–35; < Greek allantoeidḗs, equivalent to allant- (stem of allâs sausage) + -oeidḗs -oid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for allantoid

allantoid

/ (əˈlæntɔɪd) /

adjective

relating to or resembling the allantois
botany shaped like a sausage

noun

another name for allantois

Derived Forms

allantoidal (ˌælənˈtɔɪdəl), adjective

Word Origin for allantoid

C17: from Greek allantoeidēs sausage-shaped, from allas sausage + -oid
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

Medicine definitions for allantoid

allantoid

[ ə-lăntoid′ ]

adj.

Of or having an allantois.
Shaped like a sausage.

n.

allantois
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.