from The Century Dictionary.
- noun In Hydroida, a sac formed by the more external parts of the gonophore.
- noun In botany, same as
from the GNU version of the Collaborative International Dictionary of English.
- noun Same as
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun The
sterileparts of a flower; collectively, the sepalsand petals(or tepals); the perianth.
- noun The modified
leavesaround the antheridiain a bryophyticplant.
- noun dated The wall of the
sporosacin a hydroid.
from 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
Sorry, no etymologies found.
At the top of the axis in the male plant rise the antheridia, surrounded by an envelope of modified leaves called the perigonium.