exhale (1)

t. & i. [Fr. exhaler, from Lat. exhalo to breathe out: ex = out, and halo = to breathe; Sp. exhalar; Ital. esalare.] IMG:content-1251.png:[blocks in formation] exhaustle exhaust-pipe, s. Steam Eng .: A pipe conducting the spent steam from the cylinder. exhaust-port, s . Steam Eng .: The pa age leading from the cylinder to the condenser or to the open air. exhaust-regulator, s. Steam Eng.: A valve adjusted to the pre ure of the steam by compre ing or relaxing the spring held within the tube, by means of a disc secured to the end of the spindle. exhaust-steam, s. Steam Eng.: Steam which pa es out of the cylinder after having performed its function. It is emitted by its own pre ure when the exhaust-valve IMG:content-1252.png:[blocks in formation] 1. The act of exhaling. 2. That which is exhaled; an exhalation. *ex-hal-ent, a. [Lat exhalans , pr. par. of ex halo .] Exhaling; having the power or quality of exhaling. ěx-hâust', v . t. [Lat. exhaust us , pa. par. of ex haurio to draw out, to drink up, to drain: ex = out, fully, and haurio -to drain.] 1. To draw out; to drain off the whole of anything; to drain till nothing is left. "Though the knowledge they have left us be worth our study, yet they exhausted not all."-Locke. 2. To empty by drawing off or out the contents: as, to exhaust a ve el of the air contained therein. 3. To use up or expend the whole of; to consume. "His patrimony was exhausted by the great expense."Sir W. Jones. Persian Grammar. (Pref.) 4. To wear out by exertion; to tire out. "There is no man that thinks warmly and for a long time upon a thing, but mightily exhausts his spirits." Sharp: Sermons, vol. iii., ser. 3. 5. To bring out or forward all the facts or arguments connected with a subject; to examine or discu thoroughly: as, to exhaust a question. *6. To draw out; to excite. "Spare not the babe Whose dimpled smiles from fools exhaust their mercy." Shakesp.: Timon, iv. 3. For the difference between to exhaust and to spend , see SPEND. ěx-hâust', a. & 8. [Latin exhaust us, pa. par. of exhaurio.] *A. As adj .: Drained of resources or power; ex hausted, worn out. "Intemperate, di olute, exhaust through riot."- Bur ton: Anatomy of Melancholy , p. 63. B. As subst.: The same as EXHAUST-STEAM (q. v.). exhaust-fan, s. One in which the circulation is obtained by vacuum, in contradistinction to that which acts by plenum, forcing a body of air into and through a chamber or pa age-way. [BLOWER; FAN.] exhaust-nozzle, s. Steam Eng.: The blast orifice or nozzle. exhaust-orifice, s. Steam Eng.: The same as EXHAUST-NOZZLE. chin, bench; go, gem; thin, this; IMG:content-1253.png:[blocks in formation] B. As adjective : 1. Drained, drawn off or out. 2. Consumed utterly; used up. "That source of evils not exhausted yet." Cowper: Task, vi. 369. 3. Tired out; worn out with exertion. ěx-hâust-er, s. [Eng. exhaust; -er.] 1. Ord . Lang.: One who or that which exhausts. "Which of the ancients was this exhauster of nature, could explain its phenomena, or tell how things are brought to pa ?"- Ellis : Knowledge of Divine Things, p. 397. 2. Gas - making : An apparatus by which reflex pre ure of gas upon the retorts is prevented. The forms are various; one consists of a device like one form of rotary steam-engine, which has an eccentric revolving hub and sliding piston in a cylindrical chamber. It is of the nature of a rotary pump.