[ 'eɪpɪk(ə)l , 'ap- ]
■ adjective
1》 technical relating to or denoting an apex.
2》 Phonetics (of a consonant) formed with the tip of the tongue at or near the front teeth or the alveolar ridge, for example th or trilled r .
Origin
C19: from L. apex , apic- (see apex ) + -al .