Definition of spontaneous

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Spontaneous (a.) Proceeding from, or acting by, internal impulse, energy, or natural law, without external force; as, spontaneous motion; spontaneous growth..

Lern More About Spontaneous

Abiogenesis :: Abiogenesis (n.) The supposed origination of living organisms from lifeless matter; such genesis as does not involve the action of living parents; spontaneous generation; -- called also abiogeny, and opposed to biogenesis..
Concession :: Concession (n.) The act of conceding or yielding; usually implying a demand, claim, or request, and thus distinguished from giving, which is voluntary or spontaneous..
Instinctive :: Instinctive (a.) Of or pertaining to instinct; derived from, or prompted by, instinct; of the nature of instinct; determined by natural impulse or propensity; acting or produced without reasoning, deliberation, instruction, or experience; spontaneous..
Free :: Free (superl.) Not gained by importunity or purchase; gratuitous; spontaneous; as, free admission; a free gift..
Fission :: Fission (n.) A process by which certain coral polyps, echinoderms, annelids, etc., spontaneously subdivide, each individual thus forming two or more new ones. See Strobilation..
Archegony :: Archegony (n.) Spontaneous generation; abiogenesis.
Interjectional :: Interjectional (a.) Pertaining to, or having the nature of, an interjection; consisting of natural and spontaneous exclamations..
Voluntary :: Voluntary (v. t.) Unconstrained by the interference of another; unimpelled by the influence of another; not prompted or persuaded by another; done of his or its own accord; spontaneous; acting of one's self, or of itself; free..
Voluntariness :: Voluntariness (n.) The quality or state of being voluntary; spontaneousness; specifically, the quality or state of being free in the exercise of one's will..
Adventitious :: Adventitious (a.) Accidentally or sparingly spontaneous in a country or district; not fully naturalized; adventive; -- applied to foreign plants.
Spontaneous :: Spontaneous (a.) Proceeding from, or acting by, internal impulse, energy, or natural law, without external force; as, spontaneous motion; spontaneous growth..
Duplication :: Duplication (n.) The act or process of dividing by natural growth or spontaneous action; as, the duplication of cartilage cells..
Fission :: Fission (n.) A method of asexual reproduction among the lowest (unicellular) organisms by means of a process of self-division, consisting of gradual division or cleavage of the into two parts, each of which then becomes a separate and independent organisms; as when a cell in an animal or plant, or its germ, undergoes a spontaneous division, and the parts again subdivide. See Segmentation, and Cell division, under Division..
Ultroneous :: Ultroneous (a.) Spontaneous; voluntary.
Duplicate :: Duplicate (v. t.) To divide into two by natural growth or spontaneous action; as, infusoria duplicate themselves..
Willing :: Willing (v. t.) Spontaneous; self-moved.
Vinegar :: Vinegar (a.) A sour liquid used as a condiment, or as a preservative, and obtained by the spontaneous (acetous) fermentation, or by the artificial oxidation, of wine, cider, beer, or the like..
Concourse :: Concourse (n.) An assembly; a gathering formed by a voluntary or spontaneous moving and meeting in one place.
Alkarsin :: Alkarsin (n.) A spontaneously inflammable liquid, having a repulsive odor, and consisting of cacodyl and its oxidation products; -- called also Cadel's fuming liquid..
Break :: Break (v. i.) To open spontaneously, or by pressure from within, as a bubble, a tumor, a seed vessel, a bag..
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