UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌhaɪdrəʊˈkɑːrbən/

US:USA pronuncation: IPAUSA pronuncation: IPA/ˌhaɪdrəˈkɑrbən, ˈhaɪdrəˌkɑr-/

US:USA pronunciation: respellingUSA pronunciation: respelling(hī′drə kärbən, hīdrə kär′-)

WordReference Random House Learner's Dictionary of American English © 2020
hy•dro•car•bon /ˌhaɪdrəˈkɑrbən, ˈhaɪdrəˌkɑr-/USA pronunciation   n. [countable]
  1. Chemistrya group of chemical compounds containing only hydrogen and carbon, such as methane or benzene.
See -hydr-.
WordReference Random House Unabridged Dictionary of American English © 2020
hy•dro•car•bon  (hī′drə kärbən, hīdrə kär′-),USA pronunciation n. 
  1. Chemistryany of a class of compounds containing only hydrogen and carbon, as an alkane, methane, CH4, an alkene, ethylene, C2H4, an alkyne, acetylene, C2H2, or an aromatic compound, benzene, C6H6.
hy′dro•car′bo•naceous, adj. 
  • hydro-2 + carbon 1820–30

Collins Concise English Dictionary © HarperCollins Publishers::
hydrocarbon /ˌhaɪdrəʊˈkɑːbən/ n
  1. any organic compound containing only carbon and hydrogen, such as the alkanes, alkenes, alkynes, terpenes, and arenes
'hydrocarbon' also found in these entries (note: many are not synonyms or translations):
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