noun, plural con·junc·ti·vas, con·junc·ti·vae [kon-juhngk-tahy-vee] /ˌkɒn dʒʌŋkˈtaɪ vi/. Anatomy.

the mucous membrane that lines the exposed portion of the eyeball and inner surface of the eyelids.

Origin of conjunctiva

1350–1400; Middle English; short for Medieval Latin membrāna conjunctīva conjunctive membrane; see conjunctive
Related formscon·junc·ti·val, adjectivesub·con·junc·ti·val, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for conjunctivae


noun plural -vas or -vae (-viː)

the delicate mucous membrane that covers the eyeball and the under surface of the eyelid
Derived Formsconjunctival, adjective

Word Origin for conjunctiva

C16: from New Latin membrāna conjunctīva the conjunctive membrane, from Late Latin conjunctīvus conjunctive
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

Word Origin and History for conjunctivae



1540s, medical Latin, short for membrana conjunctiva "conjunctive membrane" (see conjunctive).

Online Etymology Dictionary, © 2010 Douglas Harper

conjunctivae in Medicine



n. pl. con•junc•ti•vas

The mucous membrane that lines the inner eyelid and the exposed surface of the eyeball.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

conjunctivae in Science



Plural conjunctivas conjunctivae (kŏn′jŭngk-tī)

The mucous membrane that lines the inside of the eyelid and covers the surface of the eyeball.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.