a smooth, rounded bead formed within the shells of certain mollusks and composed of the mineral aragonite or calcite in a matrix, deposited in concentric layers as a protective coating around an irritating foreign object: valued as a gem when lustrous and finely colored. Cf.
something resembling this, as various synthetic substances for use in costume jewelry.
something similar in form, luster, etc., as a dewdrop or a capsule of medicine.
something precious or choice; the finest example of anything: pearls of wisdom.
a very pale gray approaching white but commonly with a bluish tinge.
mother-of-pearl: a pearl-handled revolver.
a 5-point type.
Also calleda rounded mass of keratin occurring in certain carcinomas of the skin.
to offer or give something of great value to those incapable of appreciating it: She read them Shakespeare but it was casting pearls before swine.
—v.t.
to adorn or stud with or as with pearls.
to make like pearls, as in form or color.
—v.i.
to dive, fish, or search for pearls.
to assume a pearllike form or appearance.
—adj.
resembling a pearl in form or color.
of or pertaining to pearls: pearl diving.
set with a pearl or pearls or covered or inlaid with pearls or mother-of-pearl: a pearl necklace.