2. the sector of industry that designs and builds aircraft, rockets, missiles, and devices or vehicles intended to operate in outer space. [ WordNet 1.5 ]

His dewy locks did drop with brine apace. Spenser. [ 1913 Webster ]

A visible triumph of the gospel draw&unr_; on apace. I. Taylor. [ 1913 Webster ]

You had to be a good judge of what a man was like, and the English was copacetic. John O'Hara

In this fair plot dispacing to and fro. Spenser. [ 1913 Webster ]

2. A dais, or elevated platform; the highest step of the altar; a landing in a staircase. Shipley. [ 1913 Webster ]

☞ This term and quarterpace are rare or unknown in the United States, platform or landing being used instead. [ 1913 Webster ]

2. To exceed in development or performance; to outdo. [ PJC ]

2. To measure by steps or paces; as, to pace a piece of ground. Often used with out; as, to pace out the distance. [ 1913 Webster +PJC ]

3. To develop, guide, or control the pace or paces of; to teach the pace; to break in. [ 1913 Webster ]

If you can, pace your wisdom
In that good path that I would wish it go. Shak [ 1913 Webster ]

To pace the web (Weaving), to wind up the cloth on the beam, periodically, as it is woven, in a loom. [ 1913 Webster ]

2. To proceed; to pass on. [ Obs. ] [ 1913 Webster ]

Or [ ere ] that I further in this tale pace. Chaucer. [ 1913 Webster ]

3. To move quickly by lifting the legs on the same side together, as a horse; to amble with rapidity; to rack. [ 1913 Webster ]

4. To pass away; to die. [ Obs. ] Chaucer. [ 1913 Webster ]

2. The length of a step in walking or marching, reckoned from the heel of one foot to the heel of the other; -- used as a unit in measuring distances; as, he advanced fifty paces. “The height of sixty pace .” Chaucer. [ 1913 Webster ]

☞ Ordinarily the pace is estimated at two and one half linear feet; but in measuring distances be stepping, the pace is extended to three feet (one yard) or to three and three tenths feet (one fifth of a rod). The regulation marching pace in the English and United States armies is thirty inches for quick time, and thirty-six inches for double time. The Roman pace (passus) was from the heel of one foot to the heel of the same foot when it next touched the ground, five Roman feet. [ 1913 Webster ]

3. Manner of stepping or moving; gait; walk; as, the walk, trot, canter, gallop, and amble are paces of the horse; a swaggering pace; a quick pace. Chaucer. [ 1913 Webster ]

To-morrow, and to-morrow, and to-morrow,
Creeps in this petty pace from day to day. Shak. [ 1913 Webster ]

In the military schools of riding a variety of paces are taught. Walsh. [ 1913 Webster ]

4. A slow gait; a footpace. [ Obs. ] Chucer. [ 1913 Webster ]

5. Specifically, a kind of fast amble; a rack. [ 1913 Webster ]

6. Any single movement, step, or procedure. [ R. ] [ 1913 Webster ]

The first pace necessary for his majesty to make is to fall into confidence with Spain. Sir W. Temple. [ 1913 Webster ]

7. (Arch.) A broad step or platform; any part of a floor slightly raised above the rest, as around an altar, or at the upper end of a hall. [ 1913 Webster ]

8. (Weaving) A device in a loom, to maintain tension on the warp in pacing the web. [ 1913 Webster ]

9. The rate of progress of any process or activity; as, the students ran at a rapid pace; the plants grew at a remarkable pace. [ PJC ]

Geometrical pace, the space from heel to heel between the spot where one foot is set down and that where the same foot is again set down, loosely estimated at five feet, or by some at four feet and two fifths. See Roman pace in the Note under def. 2. [ Obs. ] --
To keep pace with or
To hold pace with, to keep up with; to go as fast as. “In intellect and attainments he kept pace with his age.” Southey. --
To put (someone) through one's paces to cause (someone) to perform an act so as to demonstrate his/her skill or ability. [ 1913 Webster +PJC ]

2. An implanted electronic device that takes over the function of the natural cardiac pacemaker{ 1 }; -- used to assist people whose heartbeat is irregular.
Syn. -- artificial pacemaker. [ WordNet 1.5 ]

3. A horse used to set the pace in racing.
Syn. -- pacer, pacesetter. [ WordNet 1.5 ]

2. Especially: A horse trained to a special gait in which both feet on one side leave the ground together; a horse that paces. [ wns=2 ] [ WordNet 1.5 ]

3. A horse used to set the pace in racing. [ wns=3 ]
Syn. -- pacemaker, pacesetter. [ WordNet 1.5 ]

Bid the snail-paced Ajax arm for shame. Shak. [ 1913 Webster ]

Pure space is capable neither of resistance nor motion. Locke. [ 1913 Webster ]

2. Place, having more or less extension; room. [ 1913 Webster ]

They gave him chase, and hunted him as hare;
Long had he no space to dwell [ in ]. R. of Brunne. [ 1913 Webster ]

While I have time and space. Chaucer. [ 1913 Webster ]

3. A quantity or portion of extension; distance from one thing to another; an interval between any two or more objects; as, the space between two stars or two hills; the sound was heard for the space of a mile. [ 1913 Webster ]

Put a space betwixt drove and drove. Gen. xxxii. 16. [ 1913 Webster ]

4. Quantity of time; an interval between two points of time; duration; time. “Grace God gave him here, this land to keep long space.” R. of brunne. [ 1913 Webster ]

Nine times the space that measures day and night. Milton. [ 1913 Webster ]

God may defer his judgments for a time, and give a people a longer space of repentance. Tillotson. [ 1913 Webster ]

5. A short time; a while. [ R. ] “To stay your deadly strife a space.” Spenser. [ 1913 Webster ]

6. Walk; track; path; course. [ Obs. ] [ 1913 Webster ]

This ilke [ same ] monk let old things pace,
And held after the new world the space. Chaucer. [ 1913 Webster ]

7. (Print.) (a) A small piece of metal cast lower than a face type, so as not to receive the ink in printing, -- used to separate words or letters. (b) The distance or interval between words or letters in the lines, or between lines, as in books, on a computer screen, etc. [ 1913 Webster ]

☞ Spaces are of different thicknesses to enable the compositor to arrange the words at equal distances from each other in the same line. [ 1913 Webster ]

8. (Mus.) One of the intervals, or open places, between the lines of the staff. [ 1913 Webster ]

9. that portion of the universe outside the earth or its atmosphere; -- called also outer space. [ PJC ]

Absolute space,
Euclidian space, etc. See under Absolute, Euclidian, etc. --
deep space, the part of outer space which is beyond the limits of the solar system. --
Space line (Print.), a thin piece of metal used by printers to open the lines of type to a regular distance from each other, and for other purposes; a lead. Hansard. --
Space rule (Print.), a fine, thin, short metal rule of the same height as the type, used in printing short lines in tabular matter. [ 1913 Webster ]

And loved in forests wild to space. Spenser. [ 1913 Webster ]

2. an intelligent creature from outer space; an extraterrestrial; -- a fictional or hypothetical being, never actually observed. [ PJC ]