Définition "gm" dans le dictionnaire Collins English Dictionary & Thesaurus

gm (gm plural) (gms plural )gm is a written abbreviation for gram.
...450 gm (1 lb) mixed soft summer fruits.

1 adj GM crops have had one or more genes changed, for example in order to make them resist pests better. GM food contains ingredients made from GM crops. GM is an abbreviation for `genetically modified'.
(mainly BRIT)
Many of us may be eating food containing GM ingredients without realising it.

2 adj In Britain, GM schools receive money directly from the government rather than from a local authority. GM is an abbreviation for `grant-maintained'.
GM schools receive better funding than other state schools.

GM-free
GM-free products or crops are products or crops that do not contain any genetically modified material.  adj
...GM-free soya.