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vinylidene group

or vi·nyl·i·dene rad·i·cal

[vahy-nil-i-deen groop or vahy-nil-i-deen rad-i-kuh l]

noun Chemistry.

the bivalent group C2H2, derived from ethylene.

Origin of vinylidene group

vinyl + -id³ + -ene

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019