axillaPronunciation: /akˈsɪlə/Definition of axilla noun (plural axillae /-liː/) 1 Anatomy an armpit, or the corresponding part in a bird or other animal. 2 Botany an axil. Origin: early 17th century: from Latin, diminutive of ala 'wing'axilla in other Oxford dictionaries Definition of axilla in the US English dictionary
