Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of spontaneous is as below...

Duplicate :: Duplicate (v. t.) To divide into two by natural growth or spontaneous action; as, infusoria duplicate themselves..

Naturally :: Naturally (adv.) In a natural manner or way; according to the usual course of things; spontaneously.

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..

Voluntarily :: Voluntarily (adv.) In a voluntary manner; of one's own will; spontaneously.

Panspermy :: Panspermy (n.) The doctrine that all organisms must come from living parents; biogenesis; -- the opposite of spontaneous generation.

Pyrophorus :: Pyrophorus (n.) Any one of several substances or mixtures which phosphoresce or ignite spontaneously on exposure to air, as a heated mixture of alum, potash, and charcoal, or a mixture of charcoal and finely divided lead..

Accord :: Accord (v. t.) Voluntary or spontaneous motion or impulse to act; -- preceded by own; as, of one's own accord..

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..

Diatom :: Diatom (n.) One of the Diatomaceae, a family of minute unicellular Algae having a siliceous covering of great delicacy, each individual multiplying by spontaneous division. By some authors diatoms are called Bacillariae, but this word is not in general use..

Fissiparous :: Fissiparous (a.) Reproducing by spontaneous fission. See Fission.

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..

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..

Break :: Break (v. i.) To open spontaneously, or by pressure from within, as a bubble, a tumor, a seed vessel, a bag..

Mobile :: Mobile (a.) Capable of being moved, aroused, or excited; capable of spontaneous movement..

Adventitious :: Adventitious (a.) Accidentally or sparingly spontaneous in a country or district; not fully naturalized; adventive; -- applied to foreign plants.

Archegony :: Archegony (n.) Spontaneous generation; abiogenesis.

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..

Automaton :: Automaton (v. i.) Any thing or being regarded as having the power of spontaneous motion or action.

Hemicarp :: Hemicarp (n.) One portion of a fruit that spontaneously divides into halves.

Fissiparism :: Fissiparism (n.) Reproduction by spontaneous fission.

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