(botany) The lines or narrow plates of cellular tissue which pass from the pith to the bark of an exogenous stem; the medullary rays. In the wood of the oak they are much larger than in that of the beech, maple, pine, cherry, etc.

plural of grain beetle

Any of several beetles from the families Silvanidae and Laemophloeidae that infest grains and grain products.

A small hard yellowish aggregation found in the Caucasus region, containing various yeasts and bacteria, and used as a ferment in preparing kefir.

plural of kefir grain

(obsolete, thieves' cant) A publican who brews his own beer.

plural of grain whisky

(rare, usually in the plural) A seed of Aframomum melegueta.

Alternative form of softgrain / (of leather) Flexible; pliable.

plural of grain physa