The Collaborative International Dictionary
Cacuminal
Cacuminal \Ca*cu"mi*nal\, a. [L. cacumen, cacuminis, the top, point.] (Philol.) Pertaining to the top of the palate; cerebral; -- applied to certain consonants; as, cacuminal (or cerebral) letters.
Wiktionary
cacuminal
a. 1 Pertaining to a point, top, or crown. 2 (context linguistics phonology English) Pronounced using a retroflexed tongue. n. (context linguistics phonology English) A sound pronounced using a retroflexed tongue.
WordNet
cacuminal
adj. pronounced with the tip of the tongue turned back toward the hard palate [syn: retroflex]