What do a.m. and p.m. stand for?


[sep-tl] /ˈsɛp tl/
adjective, Biology
of or relating to a septum.
Origin of septal
1830-40; sept(um) + -al1
Related forms
preseptal, adjective
superseptal, adjective
transseptal, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for septal
  • Positive reinforcement produced by electrical stimulation of septal area and other regions of rat brain.
  • The inferior border is thicker than the posterior, and serves for the attachment of the septal cartilage of the nose.
  • Ventricular septal defect describes one or more holes in the wall that separates the right and left ventricles of the heart.
  • For example, damage to the the lining of the septal cartilage can result in a collection of blood forming inside the nose.
  • These disorders may include nasal polyps, nasal septal deformities, and nasal tumors.
British Dictionary definitions for septal


of or relating to a septum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
septal in Medicine

septal sep·tal (sěp'təl)
Of or relating to a septum or septa.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Difficulty index for septal

Some English speakers likely know this word

Word Value for septal

Scrabble Words With Friends

Nearby words for septal