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.]
- counterreformation
- counterrevolution
- counterrevolutionary
- counterrevolutionist
- countershading
- countershaft
- countersign
- countersignature
- countersink
- counterspy
- counterstain
- countersue
- countersuit
- countersunk
- countertenor
- countertop
- countertrade
- countertrader
- countertransference
- countervail
- counterweigh
- counterweight
- counterweighted
- counterwoman
- countess