cinereous

[ si-neer-ee-uh s ]
/ sɪˈnɪər i əs /
|

adjective

in the state of or reduced to ashes: cinereous bodies.
resembling ashes.
ashen; ash-colored; grayish: a cinereous bird.
Also cin·er·i·tious [sin-uh-rish-uh s] /ˌsɪn əˈrɪʃ əs/.

Origin of cinereous

1655–65; < Latin cinereus, equivalent to ciner- (stem of cinis) ashes + -eus -eous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for cinereous

cinereous

cineritious (ˌsɪnəˈrɪʃəs)

/ (sɪˈnɪərɪəs) /

adjective

of a greyish colour
resembling or consisting of ashes

Word Origin for cinereous

C17: from Latin cinereus, from cinis ashes
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