/ ˌhaɪdrəˈpɒnɪks; NAmE -ˈpɑːn-/ noun
[ U ] the process of growing plants in water or sand, rather than in soil
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WORD ORIGIN
1930s: from hydro- of water + Greek ponos labour + -ics .
/ ˌhaɪdrəˈpɒnɪks; NAmE -ˈpɑːn-/ noun
[ U ] the process of growing plants in water or sand, rather than in soil
••
WORD ORIGIN
1930s: from hydro- of water + Greek ponos labour + -ics .
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005