- Anat. a membranous covering or envelope
- Bot. a ring of small leaves, or bracts, at the base of a flower, flower cluster, or fruit: involucres are found in all plants of the composite family
Origin of involucreFrench from Classical Latin involucrum, wrapper, case, envelope from involvere: see involve
A group of one or more whorls of bracts beneath a flower or flower cluster.
Origin of involucreFrench from Latin involūcrum wrapper, envelope ; see involucrum .
- in′vo·lu′cral in′vo·lu′crate