having ribs or ridges of rock:
the rock-ribbed coast of Maine.
unyielding; confirmed and uncompromising:
a rock-ribbed conservative.
noun 1. any plant of the genus Cistus or some allied genus, as Helianthemum. 2. any related plant. noun 1. any of various cistaceous shrubs or herbaceous plants of the Eurasian genera Helianthemum, Tuberaria, and Cistus, cultivated for their yellow-white or reddish roselike flowers
noun 1. the plant family Cistaceae, characterized by herbaceous plants and shrubs having simple, usually opposite leaves, solitary or clustered flowers, and capsular fruit, and including the frostweed, pinweed, and rockrose.
noun 1. a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geology. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable quantities in nature, as by the action of heat or water. a particular kind of such matter: igneous rock. 3. stone in the mass: buildings […]
noun 1. common salt occurring in extensive, irregular beds in rocklike masses. noun 1. another name for halite