Definition of evolution

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Evolution (n.) That theory of generation which supposes the germ to preexist in the parent, and its parts to be developed, but not actually formed, by the procreative act; -- opposed to epigenesis..

Lern More About Evolution

Cone :: Cone (n.) A solid of the form described by the revolution of a right-angled triangle about one of the sides adjacent to the right angle; -- called also a right cone. More generally, any solid having a vertical point and bounded by a surface which is described by a straight line always passing through that vertical point; a solid having a circle for its base and tapering to a point or vertex..
Epigenesis :: Epigenesis (n.) The theory of generation which holds that the germ is created entirely new, not merely expanded, by the procreative power of the parents. It is opposed to the theory of evolution, also to syngenesis..
Involution :: Involution (n.) The act or process of raising a quantity to any power assigned; the multiplication of a quantity into itself a given number of times; -- the reverse of evolution.
Pseudosphere :: Pseudosphere (n.) The surface of constant negative curvature generated by the revolution of a tractrix. This surface corresponds in non-Euclidian space to the sphere in ordinary space. An important property of the surface is that any figure drawn upon it can be displaced in any way without tearing it or altering in size any of its elements.
Cyclometer :: Cyclometer (n.) A contrivance for recording the revolutions of a wheel, as of a bicycle..
Burn :: Burn (v. i.) To combine energetically, with evolution of heat; as, copper burns in chlorine..
Rotation :: Rotation (n.) The act of turning, as a wheel or a solid body on its axis, as distinguished from the progressive motion of a revolving round another body or a distant point; thus, the daily turning of the earth on its axis is a rotation; its annual motion round the sun is a revolution..
Ungula :: Ungula (n.) A section or part of a cylinder, cone, or other solid of revolution, cut off by a plane oblique to the base; -- so called from its resemblance to the hoof of a horse..
Period :: Period (n.) The termination or completion of a revolution, cycle, series of events, single event, or act; hence, a limit; a bound; an end; a conclusion..
Uranus :: Uranus (n.) One of the primary planets. It is about 1,800,000,000 miles from the sun, about 36,000 miles in diameter, and its period of revolution round the sun is nearly 84 of our years..
Spindle :: Spindle (n.) A solid generated by the revolution of a curved line about its base or double ordinate or chord.
Wheel :: Wheel (n.) A turn revolution; rotation; compass.
Heterochrony :: Heterochrony (n.) In evolution, a deviation from the typical sequence in the formation of organs or parts..
Moon :: Moon (n.) The time occupied by the moon in making one revolution in her orbit; a month.
Counter :: Counter (a.) Contrary; opposite; contrasted; opposed; adverse; antagonistic; as, a counter current; a counter revolution; a counter poison; a counter agent; counter fugue..
Mexicanize :: Mexicanize (v. t.) To cause to be like the Mexicans, or their country, esp. in respect of frequent revolutions of government..
Chouan :: Chouan (n.) One of the royalist insurgents in western France (Brittany, etc.), during and after the French revolution..
Reactionary :: Reactionary (n.) One who favors reaction, or seeks to undo political progress or revolution..
Year :: Year (n.) The time in which any planet completes a revolution about the sun; as, the year of Jupiter or of Saturn..
Spheroid :: Spheroid (n.) A body or figure approaching to a sphere, but not perfectly spherical; esp., a solid generated by the revolution of an ellipse about one of its axes..
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