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The insertion of a day, or other portion of time, in a calendar.

A part cut off or intercepted, as a portion of a line included between two points, or cut off two straight lines or curves.

Participation in advantage, profit, and responsibility; share; portion; part; as, an interest in a brewery; he has parted with his interest in the stocks.

The bowels; entrails; viscera. Large intestine (Human Anat. & Med.), the lower portion of the bowel, terminating at the anus. It is adapted for the retention of fecal matter, being shorter, broader, and less convoluted than the small intestine; it consists of three parts, the cæcum, colon, and rectum. -- Small intesti…

A part of a psalm or other portion of Scripture read by the priest at Mass immediately after ascending to the altar.

Having one portion of a hollow organ drawn back within another portion.

o (Math.), the ratio of the reciprocals of two quantities. -- Inverse, or Reciprocal, proportion, an equality between a direct ratio and a reciprocal ratio; thus, 4 : 2 : : , or 4 : 2 : : 3 : 6, inversely.

In an inverse order or manner; by inversion; -- opposed to directly. Inversely proportional. See Directly proportional, under Directly, and Inversion, 4.

A change in the order of the terms of a proportion, so that the second takes the place of the first, and the fourth of the third.

The act or process of cutting out a portion of the iris in order to form an artificial pupil.

The contractile membrane perforated by the pupil, and forming the colored portion of the eye. See Eye.

pable of extension under the hammer; also, specif., a kind of iron produced by removing a portion of the carbon or other impurities from cast iron, rendering it less brittle, and to some extent malleable. -- Meteoric iron (Chem.), iron forming a large, and often the chief, ingredient of meteorites. It invariably conta…

apparent enlargement of a bright object seen upon a dark ground, due to the fact that the portions of the retina around the image are stimulated by the intense light; as when a dark spot on a white ground appears smaller, or a white spot on a dark ground larger, than it really is, esp. when a little out of focus.…

eligious motives or principles; ungodly. Cf. Impiou. Shame and reproach are generally the portion of the impious and irreligious. South.

Having similar proportions, similar relations, or similar differences of composition; -- said specifically of groups or series which differ by a constant difference; as, ethane, ethylene, an acetylene, or their analogous compounds, form an isologous series.

aid of two or more different substances which contain the same ingredients in the same proportions by weight, often used with with. Specif.: (a) Polymeric; i. e., having the same elements united in the same proportion by weight, but with different molecular weights; as, acetylene and benzine are isomeric (polymeric) wi…

To do or cause to be done by separate portions or lots; to sublet (work); as, to job a contract.

Any one of the large pieces of meat, as cut into portions by the butcher for roasting.

That portion of a rotating piece, as a shaft, axle, spindle, etc., which turns in a bearing or box. See Illust. of Axle box. Journal box, or Journal bearing (Mach.) the carrier of a journal; the box in which the journal of a shaft, axle, or pin turns.

y, exactness, and the like; justice; reasonableness; fairness; equity; as, justness of proportions; the justness of a description or representation; the justness of a cause. In value the satisfaction I had in seeing it represented with all the justness and gracefulness of action. Dryden.