noun: (organic chemistry) Initialism of hydrocarbonate. [(inorganic chemistry) bicarbonate]
noun: (organic chemistry, refrigeration) Initialism of hydrocarbon., a class of molecules containing hydrogen and carbon atoms [(organic chemistry) A compound consisting only of carbon and hydrogen atoms.]
noun: (sports) Initialism of hockey club.
noun: (fandom slang) Initialism of headcanon. [(fandom slang) Elements and interpretations of a fictional universe accepted by an individual or small group of fans, but not necessarily found within or supported by the official canon.]
noun: (music, subculture) Abbreviation of hardcore. [Broken bricks, stone and/or other aggregate used as foundations, especially in road and path laying.]
noun: (cycling) Abbreviation of hors categorie. (French HC) [(cycling) The toughest category of climbs, tougher than category 1. One of six categories of climbs, HC, 1, 2, 3, 4, and not classified; not classified being the easiest.]
verb: (fandom slang) Alternative letter-case form of hc
noun: (fandom slang) Alternative letter-case form of HC
verb: (fandom slang) Initialism of headcanon. [To interpret in the form of a headcanon.]
