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c field, emitted by radioactive substances, as radium. They consist of negatively charged particles or electrons, apparently the same in kind as those of the cathode rays, but having much higher velocities (about 35,000 to 180,000 miles per second).

To sift or separate the coarser from the finer particles of, as bran from flour, by means of a bolter; to separate, assort, refine, or purify by other means. He now had bolted all the flour. Spenser. Ill schooled in bolted language. Shak.

. Brownian movement, the peculiar, rapid, vibratory movement exhibited by the microscopic particles of substances when suspended in water or other fluids.

Earth in general, as representing the elementary particles of the human body; hence, the human body as formed from such particles. I also am formed out of the clay. Job xxxiii. 6. The earth is covered thick with other clay, Which her own clay shall cover. Byron. Bowlder clay. See under Bowlder. -- Brick clay, the comm…

Partaking of the nature of clay, or containing particles of it.

A collection of visible vapor, or watery particles, susponded in the upper atmosphere. I do set my bow in the cloud. Gen. ix. 13.

Large in bulk, or composed of large parts or particles; of inferior quality or appearance; not fine in material or close in texture; gross; thick; rough; -- opposed to fine; as, coarse sand; coarse thread; coarse cloth; coarse bread.

That from of attraction by which the particles of a body are united throughout the mass, whether like or unlike; -- distinguished from adhesion, which unites bodies by their adjacent surfaces. Solids and fluids differ in the degree of cohesion, which, being increased, turns a fluid into a solid. Arbuthnot.…

Holding the particles of a homogeneous body together; as, cohesive attraction; producing cohesion; as, a cohesive force.

To reduce to minute particles, or to a fine powder; to pulverize; to triturate; to grind; as, to comminute chalk or bones; to comminute food with the teeth. Pennant. Comminuted fracture. See under Fracture.

The act of reducing to a fine powder or to small particles; pulverization; the state of being comminuted. Bentley.

Closely or firmly united, as the particles of solid bodies; firm; close; solid; dense. Glass, crystal, gems, and other compact bodies. Sir I. Newton.

. The good frame of the universe was not the product of chance or fortuitous concourse of particles of matter. Sir M. Hale.

Coalescence of particles; growth; increase by the addition of particles. [R.] Sir W. Raleigh.

United in growth; hence, formed by coalition of separate particles into one mass; united in a solid form. The first concrete state, or consistent surface, of the chaos must be of the same figure as the last liquid state. Bp. Burnet.

The process of concreting; the process of uniting or of becoming united, as particles of matter into a mass; solidification.

eat] from one body to another when they are in contact, or through a homogenous body from particle to particle, constitutes conduction. Amer. Cyc.

A collection of particles or bodies into one mass; a heap; an aggregation.

to the church of Christ Hooker. A whole sentence may fail of its congruity by wanting one particle. Sir P. Sidney.

her; condensation. [Obs.] Fullness of matter, or a pretty close constipation . . . of its particles. Boyle.