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as, the infundibulum of the brain, a hollow, conical process, connecting the floor of the third ventricle with the pituitary body; the infundibula of the lungs, the enlarged terminations of the bronchial tubes.

The act by which a third person, to protect his own interest, interposes and becomes a party to a suit pending between other parties.

s of a proportion, so that the second takes the place of the first, and the fourth of the third.

rrupted; sacred; holy; as, inviolable honor or chastity; an inviolable shrine. He tried a third, a tough, well-chosen spear, The inviolable body stood sincere. Dryden.

tiply, as a quantity, into itself a given number of times; as, a quantity involved to the third or fourth power.

The third person singular of the substantive verb be, in the indicative mood, present tense; as, he is; he is a man. See Be.

The third joint or the antennæ of the Crustacea.

The third joint of the typical appendages of Crustacea.

The neuter pronoun of the third person, corresponding to the masculine pronoun he and the feminine she, and having the same plural (they, their of theirs, them).

A passage; esp., the passage between the third and fourth ventricles in the brain; the aqueduct of Sylvius.

The third Sunday after Easter; -- so called because the introit is the 66th Psalm, which, in the Latin version, begins with the words, "Jubilate Deo."

Hence: One of a lower or later standing; specifically, in American colleges, one in the third year of his course, one in the fourth or final year being designated a senior; in some seminaries, one in the first year, in others, one in the second year, of a three years' course.

ally inactive, while sarcolactic acid rotates the plane of polarization to the right. The third acid, ethylene lactic acid, accompanies sarcolactic acid in the juice of flesh, and is optically inactive. -- Lactic ferment, an organized ferment (Bacterium lacticum or lactis), which produces lactic fermentation, decompos…

the interval by which the time of high water falls behind the mean time, in the first and third quarters of the moon; -- opposed to priming of the tide, or the acceleration of the time of high water, in the second and fourth quarters; depending on the relative positions of the sun and moon. -- Lag screw, an iron bolt…

n point or line; breadth; width. Provided the length do not exceed the latitude above one third part. Sir H. Wotton.

7 10 16 28 52 100 196 388 5.9 7.3 10 15.2 27.4 52 95.4 192 300 where each distance (line third) is the sum of 4 and a multiple of 3 by the series 0, 1, 2, 4, 8, etc., the true distances being given in the lower line. -- Boyle's law (Physics), an expression of the fact, that when an elastic fluid is subjected to compr…

, at one point of its length, by receiving a force or power at a second, and turning at a third on a fixed point called a fulcrum. It is usually named as the first of the six mechanical powers, and is three kinds, according as either the fulcrum F, the weight W, or the power P. respectively, is situated between the oth…

The third canonical book of the Old Testament, containing the laws and regulations relating to the priests and Levites among the Hebrews, or the body of the ceremonial law.

Chinese measure of distance, being a little more that one third of a mile.

A kind of precious stone. The third row a ligure, an agate, and an amethyst. Ex. xxviii. 19.