(chiefly Britain) A letter written to a newspaper editor, politician, etc., expressing eccentric views; such a letter is often stereotyped as being handwritten in green ink, characterized by the frequent use of capital letters and underlining, and lengthy.

(chiefly Britain) Collectively, those people who write letters to newspaper editors, politicians, etc., expressing eccentric views; the letters are often stereotyped as being handwritten in green ink, characterized by the frequent use of capital letters and underlining, and lengthy.

mustard greens

A form of nicotine poisoning caused by dermal absorption of nicotine from the surface of wet tobacco plants.

plural of Chinese green radish

Synonym of watermelon radish

(chemistry, obsolete) A dark green crystalline salt, consisting of ammonia united with certain chlorides of platinum.

(Australia, New Zealand) A stink bug, Nezara viridula, that has spread worldwide in tropical and subtropical regions and is a significant pest on many crops.

plural of green vegetable bug

(biology) A hypothesis in evolutionary biology that explains selective altruism among individuals of a species, involving preferential treatment of individuals with certain characteristics.