| Answer | Crossword Clue |
|---|---|
| ethinyl | a monovalent unsaturated radical HC=C- derived from acetylene by removal of one hydrogen atom |
| vinylic | a monovalent radical CH2=CH derived from ethylene by removal of one hydrogen atom |
| phenyl | a monovalent aryl radical C6H5- derived from benzene by removal of one hydrogen atom often used in combination |
| isopropyl | Of or denoting the alkyl radical ?CH(CH3)2, derived from propane by removal of a hydrogen atom from the middle carbon atom |
| glyceryl | Of or denoting a radical derived from glycerol by replacement of one or more hydrogen atoms |
| primary | (chiefly of amines) Derived from ammonia by replacement of one hydrogen atom by an organic group |
