from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Cultivation of plants in nutrient solution rather than in soil.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the cultivation of plants in a nutrient solution rather than in the soil
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a technique of growing plants (without soil) in water containing dissolved nutrients
hydro- + (geo)ponics.(American Heritage® Dictionary of the English Language, Fourth Edition)