(chemistry) An area of chemistry and chemical engineering focused on the designing of products and processes that minimize the use and generation of hazardous substances.

(Philippines) a joke about sex or feces; toilet humour

Ecologically conscious. / (Philippines) Having a dirty mind; having a tendency to look for or find sexual connotations in things; lewd

plural of green ephedra

A leafless desert shrub of the US Southwest, Ephedra viridis, used to make an herbal tea.

A leafless desert shrub of the US Southwest, Ephedra viridis, used to make an herbal tea.

(archaic, Ireland) A fight; a brawl / (dated, Ireland) (as a formulaic threat) "big trouble".

The set of wide-ranging technological changes to agriculture in the 20th century, particularly in developing countries, which allowed for greater food production capacity.

Alternative form of greenwood.

plural of green wood