[hahy-droh] /ˈhaɪ droʊ/
noun, plural hydros for 2, 3.
Informal. hydroelectric power.
Informal. of, relating to, or furnishing water, water power, or hydroelectricity:
funds for new hydro projects.
a combining form meaning “water,” used in the formation of compound words:
a combining form representing hydrogen, in compound words, denoting especially a combination of hydrogen with some negative element or radical:
noun (pl) -dros
(Brit) (esp formerly) a hotel or resort, often near a spa, offering facilities for hydropathic treatment
short for hydroelectric
a Canadian name for electricity when it is supplied to a residence, business, institution, etc
(esp in Canada) a hydroelectric power company or board
indicating or denoting water, liquid, or fluid: hydrolysis, hydrodynamics
indicating the presence of hydrogen in a chemical compound: hydrochloric acid
indicating a hydroid: hydrozoan
short for hydroelectric, from 1916.
before vowels hydr-, word-forming element meaning “water,” from Greek hydro-, comb. form of hydor “water” (see water (n.1)). Also sometimes a comb. form of hydrogen.
hydro- or hydr-
A prefix that means: “water” (as in hydroelectric) or “hydrogen,” (as in hydrochloride).
[hahy-droh-ai-roh-biks] /ˌhaɪ droʊ ɛəˈroʊ bɪks/ noun, (used with a plural verb) 1. aerobic exercises performed in water, as in a swimming pool.
/ˌhaɪdrəʊəˈkuːstɪks/ noun 1. (functioning as sing) (physics) the study of sound travelling through water
[hahy-droh-air-pleyn] /ˌhaɪ droʊˈɛərˌpleɪn/ noun 1. a hydroplane.
- Hydroa vacciniforme
hydroa vacciniforme hydroa vac·cin·i·for·me (vāk-sĭn’ə-fôr’mē) n. A hereditary recurrent eruption of bullae as a result of exposure to the sun that primarily affects male children or young men.