An ore of silver, of a ruby-red or reddish black color. It includes proustite, or light red silver, and pyrargyrite, or dark red silver.

A coarse, rough-woven silk, like plush, but with a stiffer nap.

An alloy of steel with a very small proportion of silver. / Common tool steel supplied as a centerless ground round bar (with tolerances similar to that of drill rod).

barn owl

southern school whiting

Macrhybopsis storeriana, a cyprinid fish of North America.

A ceremonial bodyguard to the British Royal Household, holding the rank of colonel.

Ariosoma mellissii, a rare tropical marine eel.

Leucadendron argenteum, a tree with striking silvery leaves, endemic to a small area of the Cape Peninsula in South Africa.

(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.