from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Hydroelectric.
- n. Hydroelectric power.
- n. A hydroelectric power plant.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. hydroelectric
- n. hydroelectric power
- n. electrical power supply; specifically : electrical power provided by a utility (as a publicly-owned one)
- n. A spa.
from the GNU version of the Collaborative International Dictionary of English
- n. A hydro-aëroplane.
- n. hydroelectric power; -- also used attributively.
from The Century Dictionary and Cyclopedia
- An element in many compound words of Greek origin, meaning ‘water.’ In chemical compounds other than hydrogen it usually represents hydrogen.
From Ancient Greek ὕδωρ (hudōr, "water"). (Wiktionary)