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involucrum

N เยื่อ หุ้ม  แฉก ใบ ที่อยู่ ใต้ ดอกไม้  involucre

 

Webster's 1828 Dictionary

INVOLUCRUM, INVOLUCRE

n.[L. from involvo.] In botany, a calyx remote from the flower, particularly in the umbel, but applied also to the whorl and other kinds of inflorescence.

 

Webster's 1913 Dictionary

INVOLUCRUM

In `vo *lu "crum, n.; pl. L. Involucra, E. Involucrums. Etym: [L. See Involucre. ]

 

1. (Bot. )

 

Defn: See Involucre.

 

2. (Zoöl.)

 

Defn: A sheath which surrounds the base of the lasso cells in the Siphonophora.