[1830–40; sept(um) + -al1]This word is first recorded in the period 1830–40. Other words that entered Englishat around the same time include: ante, grid, isomerism, isometric, walkover
Examples of 'septal' in a sentence
septal
An ultrasound test revealed an atrial septal defect, or hole in the heart, between the two main chambers, or atria.