Briza media, a variety of grass. / Oldenlandia corymbosa; snake tongue grass, Old World diamond-flower / Micranthemum micranthemoides (syn. Hemianthus micranthemoides)

plural of cave pearl

A kind of speleothem, formed as calcite crystallizes on a nucleus such as a grain of sand, in much the same way that a biological pearl forms within a mollusc.

(idiomatic, derogatory) Prim, prudish, or easily offended.

(vulgar, slang, of a female) To masturbate by clitoral stimulation.

(dated, rare) cataract of the eye

Irish moss

A crystallized variety of dolomite, having a pearly lustre.

fiorite

An edge of small loops on the side of some kinds of ribbon. / A narrow kind of thread edging to be sewed on lace.