01 n. A whorl or set of bracts around a flower, umbel, or head.
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1.
A whorl or set of bracts around a flower, umbel, or head.(Bot.)
Entry
1 sense
Webster, 1913
Involucre
· In·vo·lu·cre
· IPA /ˈɪnvəˌluːkə(ɹ)/