1 Old HSK word(s): ☊二氧化碳 ** D
碳* * 一氧化碳* *

Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.

一 one / a, an / alone
氧 oxygen
化 change, convert, reform / -ize
碳 carbon
Hsk Characters: 碳 *
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual
碳 78B3 + 碳 + + carbon 石 炭 Stone 炭 (HOLZKOHLE) tan4 +

Korean:
1 NHSK word(s): 二氧化碳* 6 er4 yang3 hua4 tan4carbon dioxide CO2
KOREAN6000 word(s):
0 KOREAN 2500 New HSK words):
0 KOREAN Sentence(s):