alveolar UK /alˈviː.ə.lə/US /ælˈvi.ə.lɚ/adjective 4noun 1forms 1 adjective4 •Relating to the alveoli (small air sacs) of the lungs. •Formed with the tongue touching or approaching the inner ridge of the gums of the upper front teeth. •Relating to the jaw ridge containing the tooth sockets. •Relating to the glands with secretory cells about a central space. noun1 •An alveolar consonant. formsalveolars