hydroponics

n [sing v] art of growing plants without soil in water or sand to which chemical food is added 溶液栽培; 水培; 营养栽培; 无土栽培.

hydra, hydrangea, hydrant, hydrate, hydration, hydraulic, hydraulically, hydraulics, hydrocarbon, hydrochloric, hydroelectric, hydroelectrically, hydroelectricity, hydrofoil, hydrogen, hydrogen bomb (also H-bomb), hydrogen peroxide, hydrometer, hydrophobia, hydroplane, hydrotherapy, hyena (also hyaena), hygiene, hygienic, hygienically, hymen, hymn, hymnal, hyp-, hypo-, hype, hyper-, hyperactive, hyperactivity, hyperbola, hyperbole, hyperbolic, hyperbolical, hypercritical, hypercritically, hypermarket,