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Capable of being prolonged; as, life is prolongable by care. Each syllable being a prolongable quantity. Rush.

Capable of being propagated, or of being continued or multiplied by natural generation or production.

Capable of being refuted; refutable. [R.] -- Ref"ra*ga*ble*ness, n. [R.] -- Ref`*ra*ga*bil"i*ty (-b, n. [R.]

Indefatigable. [Obs.] "Undefatigable pains." Camden.

apex and at the basal angles of a pediment. Acroteria are also sometimes placed upon the gables in Gothic architecture. J. H. Parker.

A half gable, as at the end of a penthouse or of the aisle of a church.

of the tiling which projects beyond the principal rafters, in buildings where there is a gable. Gwilt.

Navigable for boats, or small river craft. The boatable waters of the Alleghany. J. Morse.

A tract of land, over which boats or goods are carried between two bodies of navigable water; a carrying place; a portage. Etym: [U.S.]

One of the steps in which a gable wall is often finished in place of a continuous slope; -- also called crowstep.

The ornamental finishing which surmounts the ridge of a roof, canopy, etc. The finials of gables and pinnacles are sometimes called crest. Parker.

ornament often resembling curved and bent foliage, projecting from the sloping edge of a gable, spire, etc.

The top stone of the gable end of a house. Halliwell.

fulfillment, as by the payment of a debt, or the performance of a trust or duty. Indefatigable in the discharge of business. Motley. Nothing can absolve us from the discharge of those duties. L'Estrange.

ced in a roof, and so set as to be vertical while the roof slopes away from it. Also, the gablet, or houselike structure, in which it is contained.

r hinder communication at pleasure, as before the gate of a town or castle, or over a navigable river or canal.

eral; especially, in a bad scene; extravagant; lavish. [R.] An active, expensive, indefatigable goodness. Sprat. The idle and expensive are dangerous. Sir W. Temple.

The navigable part of a river, bay, etc., through which vessels enter or depart; the part of a harbor or channel ehich is kept open and unobstructed for the passage of vessels. Totten. the rough.

n can extend his arms; -- used chiefly in measuring cables, cordage, and the depth of navigable water by soundings.

A reservoir and sluiceway beside a navigable stream, just above a shoal, so that the stream may pour in water as boats pass, and thus bear them over the shoal. Flash wheel (Mech.), a paddle wheel made to revolve in a breast or curved water way, by which water is lifted from the lower to the higher level.…