Also found in: Medical.
A secondary involucre, as at the base of an umbel within a compound umbel.
[New Latin involūcellum, diminutive of involūcrum, involucre; see involucrum.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
n, pl -cels or -cella (-ˈsɛlə)
(Botany) a ring of bracts at the base of the florets of a compound umbel
[C19: from New Latin involūcellum a little cover; see involucre]
inˌvoluˈcellate, inˌvoluˈcellated adj
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