Perigonium
The Century Dictionary and Cyclopedia
noun.
In
Hydroida
, a sac formed by the more external parts of the gonophore.
noun.
In
botany
, same as
perigone
.
the GNU version of the Collaborative International Dictionary of English
noun.
Same as
perigone
.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
The
sterile
parts of a
flower
; collectively, the
sepals
and
petals
(or
tepals
); the
perianth
.
noun.
The modified
leaves
around the
antheridia
in a
bryophytic
plant.
noun.
The wall of the
sporosac
in a
hydroid
.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils