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Webster 1913 Edition

Adj.

[L.

ambo

both +

genus

kind.]

Of two kinds.

(Bot.)

Partaking of two natures, as the perianth of some endogenous plants, where the outer surface is calycine, and the inner petaloid.

ambigenous ‎(not comparable)

Of two kinds.
(botany) Partaking of two natures, as the perianth of some endogenous plants, where the outer surface is calycine and the inner petaloid.

of two kinds