continents were once thought to be static
Rapid eye movement. Used to talk about a phase of sleeping when the eyes make rapid movements.
-rapid speciation -sexual selection
more rapid, most rapid
The comparative of rapid is more rapid
more rapid, most rapid
more rapid, most rapid
Reflexes provide the body with a rapid mechanism for self-protection. Because they don't require thought, they are faster than voluntary muscular responses.
very rapid
Rapid is an adjective.
more rapid
Very swift or quick; moving with celerity; fast; as, a rapid stream; a rapid flight; a rapid motion., Advancing with haste or speed; speedy in progression; in quick sequence; as, rapid growth; rapid improvement; rapid recurrence; rapid succession., Quick in execution; as, a rapid penman., The part of a river where the current moves with great swiftness, but without actual waterfall or cascade; -- usually in the plural; as, the Lachine rapids in the St. Lawrence.