Relating to or pronounced at the cacumen (front roof of the mouth); in phonetics, describing consonant sounds made with the tip of the tongue against the hard palate.
From Latin 'cacumen' (peak/summit) with the suffix '-al' (relating to). This specialized linguistic term emerged in phonetic studies to classify consonant articulation by location in the mouth.
Retroflexes and cacuminal consonants sound exotic to English speakers, but they're actually incredibly common worldwide—Mandarin has them, Indian languages love them, and even English speakers make them in casual speech. Your mouth is more linguistically sophisticated than you know!
Complete word intelligence in one call. Free tier — 50 lookups/day.