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Webster 1913 Edition

Noun.

(Chem.)

One of a group of metameric hydrocarbons,

C5H10

, of the ethylene series. The colorless, volatile, mobile liquid commonly called amylene is a mixture of different members of the group.

See also: amylène

amylene ‎(plural amylenes)

(organic chemistry) One of a group of metameric hydrocarbons, C₅H₁₀, of the ethylene series.
A colorless, volatile, mobile liquid consisting of a mixture of different members of the group.