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The act or process of straining or filtering. [R.]

Agriculture. [Obs.] Bailey.

An opening between the corbels which support a projecting parapet, or in the floor of a gallery or the roof of a portal, shooting or dropping missiles upen assailants attacking the base of the walls. Also, the construction of such defenses, in general, when of this character. See Illusts. of Battlement and Castle.…

The act or process of percolating, or filtering; filtration; straining. Specifically (Pharm.), the process of exhausting the virtues of a powdered drug by letting a liquid filter slowly through it.

Act of transcolating, or state of being transcolated. [Obs.] Bp. Stillingfleet.

A framework of timbers and plank backing for a shaft lining, to prevent caving, percolation of water, etc.

To filter; to defecate; as liquid, by straining or percolation. Arbuthnot.

To part with soluble constituents by percolation.

Permitting liquids to pass by percolation; not capable of retaining water; porous; pervious; -- said of gravelly or sandy soils, and the like.

Having machicolations. "Machicolated turrets." C. Kingsley.

Same as Machicolation.

mortal seed they were not held. Waller. Seed bag (Artesian well), a packing to prevent percolation of water down the bore hole. It consists of a bag encircling the tubing and filled with flax seed, which swells when wet and fills the space between the tubing and the sides of the hole. -- Seed bud (Bot.), the germ or r…