cephalalgia cephalagra • cephalalgic · · · Info · Definitions · Synonyms · Characters · · cephalalgia · · Text Latin · · Script 11 · · Length Definitions · · · (noun) pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs. Synonyms: headache, head ache. · · Noun Definition 1 Synonyms · · · headache · · Synonym 1 head ache · · Synonym 2 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C p latin small letter p U+0070