perigonal

per·i·go·ni·um

[per-i-goh-nee-uhm]
noun, plural per·i·go·ni·a [-nee-uh] . Botany.
the envelope of modified leaves surrounding the antheridia in mosses.
Also, per·i·gone [per-i-gohn] .

Origin:
1810–20; < Neo-Latin; see peri-, -gonium

Related forms
per·i·go·ni·al, per·i·go·nal, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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WordNet
perigonal

adjective
of or relating to a perigone 
00:10
Perigonal is always a great word to know.
So is bezoar. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
LEARN MORE UNUSUAL WORDS WITH WORD DYNAMO...
perigonium

noun
collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils [syn: perianth] 
WordNet® 3.0, © 2006 by Princeton University.
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