Dictionary.com
definitions

vesicular

[vuh-sik-yuh-ler]

adjective

of or relating to a vesicle or vesicles.
having the form of a vesicle.
characterized by or consisting of vesicles.

Origin of vesicular

1705–15; < New Latin vēsīculāris, equivalent to Latin vēsīcul(a) vesicle + -āris -ar1
Related formsve·sic·u·lar·ly, adverbin·ter·ve·sic·u·lar, adjectivenon·ve·sic·u·lar, adjectivenon·ve·sic·u·lar·ly, adverbsub·ve·sic·u·lar, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Word Origin and History for non-vesicular

vesicular

adj.

1715, from Modern Latin vesicularis, from vesicula, diminutive of vesica "bladder" (see ventral).

Online Etymology Dictionary, © 2010 Douglas Harper
non-vesicular in Medicine

vesicular

[vĕ-sĭk′yə-lər]

adj.

Of or relating to vesicles.
Composed of or containing vesicles.
Having the form of a vesicle.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.