| greensand | <geology> A variety of sandstone, usually imperfectly consolidated, consisting largely of glauconite, a silicate of iron and potash of a green colour, mixed with sand and a trace of phosphate of lime. Greensand is often called marl, because it is a useful fertiliser. The greensand beds of the American Cretaceous belong mostly to the Upper Cretaceous. Source: Websters Dictionary (01 Mar 1998) |
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| greenshank | <zoology> A European sandpiper or snipe (Totanus canescens). Synonym: greater plover. Source: Websters Dictionary (01 Mar 1998) |
| greenstick fracture | The bending of a bone with incomplete fracture involving the convex side of the curve only. (05 Mar 2000) |
| greenstone | <geology> A name formerly applied rather loosely to certain dark-coloured igneous rocks, including diorite, diabase, etc. Origin: So called from a tinge of green in the colour. Source: Websters Dictionary (01 Mar 1998) |