step·par·ent 
(stĕppâr′ənt, -păr′-)
(stĕppâr′ənt, -păr′-)n.
A person who is not one's biological parent but has married one's parent after one's birth.
- carbocyclic
- carbohydrase
- carbohydrate
- carbohydrate loading
- carbolated
- carbolic acid
- carbo-load
- car bomb
- carbon
- carbon-12
- carbon-14
- carbon-14 dating
- carbonaceous
- carbonado
- carbonado
- carbonara
- carbonate
- carbonated water
- carbonation
- carbonator
- carbon black
- carbon copy
- carbon cycle
- carbon-date
- carbon dating