Part 592

Dy*nam"ics (?), n. 1. That branch of mechanics which treats of the motion of bodies (kinematics) and the action of forces in producing or changing their motion (kinetics). Dynamics is held by some recent writers to include statics and not kinematics.

2. The moving moral, as well as physical, forces of any kind, or the laws which relate to them.

3. (Mus.) That department of musical science which relates to, or treats of, the power of tones.

Dy"na*mism (?), n. [Cf. F. dynamisme. See Dynamics.] The doctrine of Leibnitz, that all substance involves force.

Dy"na*mist (?), n. One who accounts for material phenomena by a theory of dynamics.

Those who would resolve matter into centers of force may be said to constitute the school of dynamists.

Ward (Dyn. Sociol. ).

Dy"na*mi`tard (?), n. A political dynamiter. [A form found in some newspapers.]

Dy"na*mite (?), n. [Gr. &?; power. See Dynamic.] (Chem.) An explosive substance consisting of nitroglycerin absorbed by some inert, porous solid, as infusorial earth, sawdust, etc. It is safer than nitroglycerin, being less liable to explosion from moderate shocks, or from spontaneous decomposition.

Dy"na*mi`ter (?), n. One who uses dynamite; esp., one who uses it for the destruction of life and property.

Dy"na*mi`ting (?), n. Destroying by dynamite, for political ends.

Dynamiting is not the American way.

The Century.

Dy"na*mi`tism (?), n. The work of dynamiters.

Dy"na*mi*za`tion (?), [Gr. &?; power. See Dynamic.] (Homeop.) The act of setting free the dynamic powers of a medicine, as by shaking the bottle containing it.

Dy"na*mo (?), n. A dynamo-electric machine.

Dy`na*mo-e*lec"tric (?), a. [Gr. &?; power + E. electric. See Dynamic.] Pertaining to the development of electricity, especially electrical currents, by power; producing electricity or electrical currents by mechanical power.

Dy*nam"o*graph (?), n. [Gr. &?; power + -graph. See Dynamic.] (Physiol.) A dynamometer to which is attached a device for automatically registering muscular power.

Dy`na*mom"e*ter (?), n. [Cf. F. dynamomètre. See Dynameter.] An apparatus for measuring force or power; especially, muscular effort of men or animals, or the power developed by a motor, or that required to operate machinery.

It usually embodies a spring to be compressed or weight to be sustained by the force applied, combined with an index, or automatic recorder, to show the work performed.

{ Dy`na*mo*met"ric (?), Dy`na*mo*met"ric*al (?), } a. Relating to a dynamometer, or to the measurement of force doing work; as, dynamometrical instruments.

Dy`na*mom"e*try (?), n. The art or process of measuring forces doing work.

Dy"nast (?), n. [L. dynastes, Gr. &?;, fr. &?; to be able or strong: cf. F. dynaste. See Dynamic.] 1. A ruler; a governor; a prince.

2. A dynasty; a government. [Obs.]

||Dy*nas"ta (?), n. [NL. See Dynast.] A tyrant. [Obs.] Milton.

Dy*nas"tic (?), a. [Gr. &?; of a dynast, fr. &?;: cf. F. dunastique.] Of or relating to a dynasty or line of kings. Motley.

Dy*nas"tic*al (?), a. Dynastic.

Dy*nas"ti*dan (?), n. [Gr. &?;, fem. of &?;. See Dynast. The name alludes to the immense size of some species.] (Zoöl.) One of a group of gigantic, horned beetles, including Dynastus Neptunus, and the Hercules beetle (D. Hercules) of tropical America, which grow to be six inches in length.