Definition of “septal” - English Dictionary

british dictionary

“septal” in British English

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septaladjective

uk /ˈsep.təl/ us /ˈsep.təl/ specialized

relating to the septum (= a thin part dividing tissues or spaces in an organ such as the nose or heart):

Septal defect is sometimes known as "hole in the heart".

(Definition of “septal” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)