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Meaning of hydroponics

hy•dro•pon•ics

Pronunciation: (hī"dru-pon'iks), [key]
— n. (used with a sing. v.)
  1. the cultivation of plants by placing the roots in liquid nutrient solutions rather than in soil; soilless growth of plants. Cf. aeroculture, geoponics (def. 2).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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