"composed of chlorine and hydrogen," 1815, from hydrochloric acid (proposed 1814 by Gay-Lussac); see hydrogen + chlorine + -ic.
hydric
hydro
hydro-
hydrocarbon
hydrocephalus
hydrochloric
hydrocortisone
hydrodynamic
hydro-electric
hydrofoil
hydrogen
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}