alveolarPronunciation: /alˈvɪələ, ˌalvɪˈəʊlə/Definition of alveolar adjective 1 Anatomy relating to an alveolus. 2 Phonetics (of a consonant) pronounced with the tip of the tongue on or near this ridge (e.g. n, s, d, t): voiced and voiceless alveolar stops noun Phonetics an alveolar consonant: boundaries between alveolars and palatalsalveolar in other Oxford dictionaries Definition of alveolar in the US English dictionary