Continuous, a.
Etymology: [L. continuus, fr. continere to hold together. See Continent.]
1. Without break, cessation, or interruption; without intervening space or time; uninterrupted; unbroken; continual; unceasing; constant; continued; protracted; extended; as, a continuous line of railroad; a continuous current of electricity. he can hear its continuous murmur. Longfellow.
2. (Bot.)
Not deviating or varying from uninformity; not interrupted; not joined or articulated. Continuous brake (Railroad), a brake which is attached to each car a train, and can be caused to operate in all the cars simultaneously from a point on any car or on the engine. -- Continuous impost. See Impost.
Syn. -- Continuous, Continual. Continuous is the stronger word, and denotes that the continuity or union of parts is absolute and uninterrupted; as, a continuous sheet of ice; a continuous flow of water or of argument. So Daniel Webster speaks of "a continuous and unbroken strain of the martial airs of England." Continual, in most cases, marks a close and unbroken succession of things, rather than absolute continuity. Thus we speak of continual showers, implying a repetition with occasional interruptions; we speak of a person as liable to continual calls, or as subject to continual applications for aid, etc. See Constant.
Shades of meaning
Fernald has no entry of its own for continuous; he lists it under continual.
Where he writes about it:
Continuous describes that which is absolutely without pause or break; continual, that which often intermits, but as regularly begins again. — from continual
A continuous beach is exposed to the continual beating of the waves. — from continual