Longman Dictionary of Contemporary English homepage

Date: 1700-1800
Origin: alveolus 'hollow part in which a tooth is fastened' (17-21 centuries), from Latin, from alveus 'hollow place'

alveolar

noun
     
al‧ve‧o‧lar [countable] technical
a consonant sound such as or that you make by putting the end of your tongue behind your upper front teeth

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