[ nim-boh-strey-tuhs, -strat-uhs ]
/ ˌnɪm boʊˈstreɪ təs, -ˈstræt əs /
Save This Word!

noun, plural nim·bo·stra·tus.

a cloud of a class characterized by a formless layer that is almost uniformly dark gray; a rain cloud of the layer type, of low altitude, usually below 8,000 feet (2,440 meters).



Set some time apart to test your bracket symbol knowledge, and see if you can keep your parentheses, squares, curlies, and angles all straight!
Question 1 of 7
Let’s start with some etymology: What are the origins of the typographical word “bracket”?

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing

Meet Grammar Coach

Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of nimbostratus

First recorded in 1885–90; nimbo- + stratus

Words nearby nimbostratus

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for nimbostratus

/ (ˌnɪmbəʊˈstreɪtəs, -ˈstrɑːtəs) /

noun plural -ti (-taɪ)

a dark-coloured rain-bearing stratus cloud
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

Scientific definitions for nimbostratus

[ nĭm′bō-strătəs ]

Plural nimbostrati (nĭm′bō-strătī′)

A dark, gray, mid-altitude cloud that often covers the entire sky and precipitates rain, snow, or sleet. Nimbostratus clouds generally form around 2,000 m (6,560 ft) but often extend to much higher and lower altitudes. See illustration at cloud.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Book Your Online Tutor Now