-ylene

From ethylene and amylene, where the -yl- is etymological. Sense 2 from -yl +‎ -ene.

-ylene

1. Synonym of -ene
2. (organic chemistry) used to form the names of bivalent radicals

• Leyen, Neely, Leney

• -yla

• IPA^(key): /ˈyːlənə/

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• Rhymes: -ənə
• Hyphenation: -yl‧en‧e

-ylene

1. definite plural form of -yl