• WordNet 3.6
    • n perigone collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils
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Webster's Revised Unabridged Dictionary
    • Perigone (Zoöl) A sac which surrounds the generative bodies in the gonophore of a hydroid.
    • Perigone (Bot) Any organ inclosing the essential organs of a flower; a perianth.
    • Perigone (Bot) In mosses, the involucral bracts of a male flower.
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Century Dictionary and Cyclopedia
    • n perigone In botany, same as perianth, but also, specifically, the circle of leaves surrounding the antheridia of certain mosses. Also perigonium.
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Chambers's Twentieth Century Dictionary
    • n Perigone per′i-gōn (bot.) the same as Perianth—also Perigō′nium
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Webster's Revised Unabridged Dictionary
Pref. peri-, + Gr. productive organs
Chambers's Twentieth Century Dictionary
Gr. peri, about, gonē, seed.


In literature:

The structure of the leaves of the perigone is much like that of the green leaves, but the tissues are somewhat reduced.
"Elements of Structural and Systematic Botany" by Douglas Houghton Campbell
There is also the word "perigon," meaning the whole angular space about a point.
"The Teaching of Geometry" by David Eugene Smith