al·kene 
(ălkēn′)
(ălkēn′)n.
Any of a series of unsaturated, aliphatic hydrocarbons with a carbon-carbon double bond, having the general formula CnH2n.
[ALK(YL) + -ENE.]
- Counter Reformation
- counterreformation
- counterrevolution
- counterrevolutionary
- counterrevolutionist
- countershading
- countershaft
- countersign
- countersignature
- countersink
- counterspy
- counterstain
- countersue
- countersuit
- countersunk
- countertenor
- countertop
- countertrade
- countertrader
- countertransference
- countervail
- counterweigh
- counterweight
- counterweighted
- counterwoman