Dictionary.com

underarm

[ uhn-der-ahrm ]
/ ˈʌn dərˌɑrm /

adjective

of, situated, or for use under the arm or in the armpit: an underarm deodorant.
underhand: an underarm pitch in softball.

noun

armpit.

adverb

underhand.

QUIZZES

BECOME A PRO CHEF WITH THIS EXQUISITE CUISINE QUIZ!

Even if you can't be a professional chef, you can at least talk like one with this vocabulary quiz.
Question 1 of 9
You may have read the word "simmer" in a recipe or two, but what does it really mean?
To cook in water that begins cold and then reaches a boil.
To stew in a sauce for a long time.
To cook in water, just below boiling temperature.
TAKE THE QUIZ TO FIND OUT

Origin of underarm

First recorded in 1810–20; under- + arm1

Words nearby underarm

under a cloud, underact, underactive, underage, under any circumstances, underarm, underarmed, under arrest, underbearer, underbelly, underbid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for underarm

British Dictionary definitions for underarm

underarm
/ (ˈʌndərˌɑːm) /

adjective

(of a measurement) extending along the arm from wrist to armpit
sport of or denoting a style of throwing, bowling, or serving in which the hand is swung below shoulder level
below the arm

adverb

in an underarm style
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

Medical definitions for underarm

underarm
[ ŭn′dər-ärm′ ]

adj.

Located, placed, or used under the arm.

n.

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