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eclipse, where the light is partly, but not wholly, cut off by the intervening body; the space of partial illumination between the umbra, or perfect shadow, on all sides, and the full light. Sir I. Newton.

The act or state of passing through any space; as, the peragration of the moon in her monthly revolution. [Obs.] Sir T. Browne.

Surrounding a cell; as, the pericellular lymph spaces surrounding ganglion cells.

The space between the columns and the wall of the cella, in a Greek or a Roman temple.

ess or uncertainty of outline in distant objects. Aërial perspective is the expression of space by any means whatsoever, sharpness of edge, vividness of color, etc. Ruskin.

Any portion of space regarded as measured off or distinct from all other space, or appropriated to some definite object or use; position; ground; site; spot; rarely, unbounded space. Here is the place appointed. Shak. What place can be for us Within heaven's bound Milton. The word place has sometimes a more confused se…

es to which points are referred for the purpose of determining their relative position in space. -- Plane of refraction or reflection (Opt.), the plane in which lie both the incident ray and the refracted or reflected ray.

m the morula by the divergence of its cells in such a manner as to give rise to a central space, around which the cells arrange themselves as an envelope; an embryonic form intermediate between the morula and gastrula. Sometimes used as synonymous with gastrula.

ic year (Astron.), a period of time determined by the revolution of the equinoxes, or the space of time in which the stars and constellations return to their former places in respect to the equinoxes; -- called also great year. This revolution, which is caused by the precession of the equinoxes, is accomplished in abou…

One who holds that all space is full of matter.

state of being full or complete; fullness; completeness; abundance; as, the plenitude of space or power.

That state in which every part of space is supposed to be full of matter; -- opposed to vacuum. G. Francis.

A hole or space covered by a movable piece of board, as in a floor, boxing, partitions, or the like.

An indefinitely small space; a mere spot indicated or supposed. Specifically: (Geom.) That which has neither parts nor magnitude; that which has position, but has neither length, breadth, nor thickness, -- sometimes conceived of as the limit of a line; that by the motion of which a line is conceived to be produced.…

taining to the ham; in the region of the ham, or behind the knee joint; as, the popliteal space.

The space, at one end, between opposite trusses when these are terminated by inclined braces.

r with their invariable relations of coexistence and succession, as occurring in time and space. Such relations are denominated laws, which are to be discovered by observation, experiment, and comparison. This philosophy holds all inquiry into causes, both efficient and final, to be useless and unprofitable.…

In the theory of gravitation, or of other forces acting in space, a function of the rectangular coordinates which determine the position of a point, such that its differential coefficients with respect to the coördinates are equal to the components of the force at the point considered; -- also called potential function…

The place in which one is present; the part of space within one's ken, call, influence, etc.; neighborhood without the intervention of anything that forbids intercourse. Wrath shell be no more Thenceforth, but in thy presence joy entire. Milton.

ed into a photograph. Portions, such as the sky, are covered while printing and the blank space thus reserved is filled in by printing from another negative.