dys·cal·cu·li·a 
(dĭs′kăl-kylē-ə)
(dĭs′kăl-kylē-ə)n.
Impairment of the ability to understand and solve mathematical problems.
[DYS– + CALCUL(ATE) + –IA1.]
- continuous variation
- continuous wave
- continuous-wave
- continuum
- contort
- contorted
- contortedly
- contortedness
- contortion
- contortionist
- contortionistic
- contortive
- contour
- contour feather
- contour line
- contour map
- contra
- Contra
- contra-
- contraband
- contrabandage
- contrabandist
- contrabass
- contrabassist
- contrabassoon