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Standing out or above any surface; protruded. That part of the teeth which is extant above the gums. Ray. A body partly immersed in a fluid and partly extant. Bentley.

The constellation Sextans. Box sextant, a small sextant inclosed in a cylindrical case to make it more portable.

An instrument for taking altitudes, as a quadrant, sextant, etc. Knight.

d for taking the altitude of the heavenly bodies, but now superseded by the quadrant and sextant; -- so called because the observer turned his back to the body observed.

odent (Hydrochærus capybara) Living on the margins of lakes and rivers. It is the largest extant rodent, being about three feet long, and half that in height. It somewhat resembles the Guinea pig, to which it is related; -- called also cabiai and water hog.

The extant copies of the first or earliest printed books, or of such as were printed in the 15th century.

To mark divisions on; to graduate; as, to divide a sextant.

cept; an apologue. See the Note under Apologue. Jotham's fable of the trees is the oldest extant. Addison .

The measure or extant of one's capacity; depth, as of intellect; profundity; reach; penetration. [R.] Another of his fathom they have none To lead their business. Shak.

formerly used at sea for taking the altitudes of heavenly bodies, now superseded by the sextant; -- called also cross- staff. Brande & C.

A roll recting the several stages arranged for a royal progress. Many of them are extant in the herald's office. [Obs.] Hanmer.

y developed a considerable civilization, of which numerous monuments and inscriptions are extant. Authorities are not agreed as to their race. While several attempts have been made to decipher the Hittite characters, little progress has yet been made.

, or a plane reflector adjusted to the true level artificially; -- used chiefly with the sextant for observing the double altitude of a celestial body. -- Celestial horizon. (Astron.) See def. 2, above. -- Dip of the horizon (Astron.), the vertical angle between the sensible horizon and a line to the visible horizon,…

-- Index finger. See Index, 5. -- Index glass, the mirror on the index of a quadrant, sextant, etc. -- Index hand, the pointer or hand of a clock, watch, or other registering machine; a hand that points to something. -- Index of a logarithm (Math.), the integral part of the logarithm, and always one less than the…

ers; tulip tree; whitewood; -- called also canoewood. Liriodendron tulipifera is the only extant species, but there were several others in the Cretaceous epoch.

ethod 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…

ning the size or distance of inaccessible objects by means of two reflectors on a common sextant.

. 26. Terms of peace yet none Vouchsafed or sought. Milton. None of their productions are extant. Blair.

nstrument and clock; the sun's altitude, or the distance of the moon from a star, with a sextant; the temperature, with a thermometer, etc.

aving an arc which measures up to 9Oº, but being itself the eighth part of a circle. Cf. Sextant.