car·bo·na·ceous

[kahr-buh-ney-shuhs]
adjective
of, like, or containing carbon.

Origin:
1785–95; carbon + -aceous

sub·car·bo·na·ceous, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
carbonaceous (ˌkɑːbəˈneɪʃəs) [Click for IPA pronunciation guide]
 
adj
of, resembling, or containing carbon

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Carbonaceous is always a great word to know.
So is quincunx. Does it mean:
a fool or simpleton; ninny.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
American Heritage
Science Dictionary
carbon   (kär'bən)  Pronunciation Key 
Symbol C
A naturally abundant, nonmetallic element that occurs in all organic compounds and can be found in all known forms of life. Diamonds and graphite are pure forms, and carbon is a major constituent of coal, petroleum, and natural gas. Carbon generally forms four covalent bonds with other atoms in larger molecules. Atomic number 6; atomic weight 12.011; sublimation point above 3,500°C; boiling point 4,827°C; specific gravity of amorphous carbon 1.8 to 2.1, of diamond 3.15 to 3.53, of graphite 1.9 to 2.3; valence 2, 3, 4. See Periodic Table.

carbonaceous adjective
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
It appears similar to a group of asteroids known as carbonaceous chondrites.
Carbonaceous to calcareous siltstones have also been observed.
The higher pH released calcium ions taken up from the water by carbonaceous polymers that form part of the mat.
Expect some ups and downs of climate but don't hold your breath for carbonaceous heat or glacier attacks anytime soon.
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