aphtha
/ˈæfθə/noun
(pl. aphthae /-θiː/ )
1- Medicine a small ulcer occurring in groups in the mouth or on the tongue【医】口疮, 舌疮, 口腔溃疡。
1.1
- mass noun a condition in which such ulcers occur口疮症状。
派生词
aphthous
adjective词源
mid 17th cent.: via Latin from Greek， connected with haptein 'set on fire'.