Dictionary.com

arcus

[ ahr-kuhs ]
/ ˈɑr kəs /
Save This Word!

noun, plural ar·cus.Meteorology.

a dense, horizontal, roll-shaped cloud sometimes occurring at the lower front portion of a cumulonimbus.

QUIZZES

QUIZ YOURSELF ON AFFECT VS. EFFECT!

In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.
Also called roll cloud.

Origin of arcus

<Latin: bow, arch
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Medical definitions for arcus

arcus
[ ärkəs ]

n. pl. arcus

A structure resembling a bent bow or an arch.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Essays. Emails. Everything. Get Help Now!