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Lu·nar a.

1. Of or pertaining to the moon; as, lunar observations.

2. Resembling the moon; orbed.

3. Measured by the revolutions of the moon; as, a lunar month.

4. Influenced by the moon, as in growth, character, or properties; as, lunar herbs.

**Lunar caustic** Med. Chem., silver nitrate prepared to be used as a cautery; -- so named because silver was called __luna__ by the ancient alchemists.

**Lunar cycle**. Same as Metonic cycle. See under Cycle.

**Lunar distance**, the angular distance of the moon from the sun, a star, or a planet, employed for determining longitude by the lunar method.

**Lunar method**, the method of finding a ship's longitude by comparing the local time of taking (by means of a sextant or circle) a given lunar distance, with the Greenwich time corresponding to the same distance as ascertained from a nautical almanac, the difference of these times being the longitude.

**Lunar month**. See Month.

**Lunar observation**, an observation of a lunar distance by means of a sextant or circle, with the altitudes of the bodies, and the time, for the purpose of computing the longitude.

**Lunar tables**. (a) Astron. Tables of the moon's motions, arranged for computing the moon's true place at any time past or future. (b) Navigation Tables for correcting an observed lunar distance on account of refraction and parallax.

**Lunar year**, the period of twelve lunar months, or 354 days, 8 hours, 48 minutes, and 34.38 seconds.

Dis·tance n.

1. The space between two objects; the length of a line, especially the shortest line joining two points or things that are separate; measure of separation in place.

*Every particle attracts every other with a force . . . inversely proportioned to the square of the distance.* --*Sir I. Newton.*

2. Remoteness of place; a remote place.

*Easily managed from a distance.* --*W. Irving.*

*'T is distance lends enchantment to the view.* --*T. Campbell.*

*[He] waits at distance till he hears from Cato.* --*Addison.*

3. Racing A space marked out in the last part of a race course.

*The horse that ran the whole field out of distance.* --*L'Estrange.*

Note: ☞ In trotting matches under the rules of the American Association, the __distance__ varies with the conditions of the race, being 80 yards in races of mile heats, best two in three, and 150 yards in races of two-mile heats. At that distance from the winning post is placed the __distance post__. If any horse has not reached this distance post before the first horse in that heat has reached the winning post, such horse is __distanced__, and disqualified for running again during that race.

4. Mil. Relative space, between troops in ranks, measured from front to rear; -- contrasted with interval, which is measured from right to left. *“ Distance between companies in close column is twelve yards.”*

5. Space between two antagonists in fencing.

6. Painting The part of a picture which contains the representation of those objects which are the farthest away, esp. in a landscape.

Note: ☞ In a picture, the

7. Ideal disjunction; discrepancy; contrariety.

8. Length or interval of time; period, past or future, between two eras or events.

9. The remoteness or reserve which respect requires; hence, respect; ceremoniousness.

I hope your modesty

Will know what distance to the crown is due. --

10. A withholding of intimacy; alienation; coldness; disagreement; variance; restraint; reserve.

On the part of Heaven,

Now alienated, distance and distaste. --

11. Remoteness in succession or relation; as, the distance between a descendant and his ancestor.

12. Mus. The interval between two notes; as, the distance of a fourth or seventh.