dys ‧ cal ‧ cu ‧ li ‧ a /ˌdɪskælkjəˈliːə, ˌdɪskælkjʊˈliːə/ BrE AmE noun [uncountable]
a condition that makes it difficult for someone to recognize numbers correctly, so that they cannot do simple sums ⇨ dyslexia
dys ‧ cal ‧ cu ‧ li ‧ a /ˌdɪskælkjəˈliːə, ˌdɪskælkjʊˈliːə/ BrE AmE noun [uncountable]
a condition that makes it difficult for someone to recognize numbers correctly, so that they cannot do simple sums ⇨ dyslexia
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012