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ve is the envelope of its tangents. push the envelope. It is used to refer to the maximum performance available at the current state of the technology, and therefore refers to a class of machines in general, not a specific machine. push the envelope Increase the capability of some type of machine or system; -- usu. by…

To perform the duties of a bishop.

The art of riding on horseback; performance on horseback; horsemanship; as, feats equestrianism.

ical equivalent of heat (Physics), the number of units of work which the unit of heat can perform; the mechanical energy which must be expended to raise the temperature of a unit weight of water from 0º C. to 1º C., or from 32º F. to 33º F. The term was introduced by Dr. Mayer of Heilbronn. Its value was found by Joule…

delivered to a third person, to be held by him till some act is done or some condition is performed, and then to be by him delivered to the grantee. Blackstone.

An effort made, or exertion of body or mind, for the performance of anything; a trial; attempt; as, to make an essay to benefit a friend. "The essay at organization." M. Arnold.

One who executes or performs; esp., a performer on a musical instrument. Great executants on the organ. De Quincey.

ough to the end; to carry out into complete effect; to complete; to finish; to effect; to perform; Why delays His hand to execute what his decree Fixed on this day Milton.

One who performs or carries into effect. See Executor.

The act of executing; a carrying into effect or to completion; performance; achievement; consummation; as, the execution of a plan, a work, etc. The excellence of the subject contributed much to the happiness of the execution. Dryden.

In the way of executing or performing.

One who executes or performs; a doer; as, an executor of baseness. Shak.

The performance of an office, a ceremony, or a religious duty. Lewis refused even those of the church of England . . . the public exercise of their religion. Addison. To draw him from his holy exercise. Shak.

To put forth, as the result or exercise of effort; to bring to bear; to do or perform. When we will has exerted an act of command on any faculty of the soul or member of the body. South. To exert one's self, to use efforts or endeavors; to strive; to make an attempt.

The departure of a player from the stage, when he has performed his part. They have their exits and their entrances. Shak.

Possessed of, or characterized by, expedition, or efficiency and rapidity in action; performed with, or acting with, expedition; quick; having celerity; speedily; as, an expeditious march or messenger. -- Ex`pe*di"tious*ly, adv. -- Ex`pe*di"tious*ness, n.

Performing with speed. [Obs.] Bacon.

Taught by use, practice, or experience, experienced; having facility of operation or performance from practice; knowing and ready from much practice; clever; skillful; as, an expert surgeon; expert in chess or archery. A valiant and most expert gentleman. Shak. What practice, howsoe'er expert In fitting aptest words to…

ives life and suggestive force to ideas and sentiments; as, he reads with expression; her performance on the piano has expression. The imitators of Shakespeare, fixing their attention on his wonderful power of expression, have directed their imitation to this. M. Arnold.

Composed, performed, or uttered on the spur of the moment, or without previous study; unpremeditated; off-hand; extempore; extemporary; as, an extemporaneous address or production. -- Ex*tem`po*ra"ne*ous*ly, adv. -- Ex*tem`po*ra"ne*ous*ness,n.