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...

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..

Interjectional :: Interjectional (a.) Pertaining to, or having the nature of, an interjection; consisting of natural and spontaneous exclamations..

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

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

Duplication :: Duplication (n.) The act or process of dividing by natural growth or spontaneous action; as, the duplication of cartilage cells..

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

Careless :: Careless (a.) Without thought or purpose; without due care; without attention to rule or system; unstudied; inconsiderate; spontaneous; rash; as, a careless throw; a careless expression..

Spontoon :: Spontaneous (a.) Produced without being planted, or without human labor; as, a spontaneous growth of wood..

Artificial :: Artificial (a.) Cultivated; not indigenous; not of spontaneous growth; as, artificial grasses..

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

Copal :: Copal () A resinous substance flowing spontaneously from trees of Zanzibar, Madagascar, and South America (Trachylobium Hornemannianum, T. verrucosum, and Hymenaea Courbaril), and dug from earth where forests have stood in Africa; -- used chiefly in making varnishes..

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..

Heterogenesis :: Heterogenesis (n.) Spontaneous generation, so called..

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

Concrete :: Concrete (n.) A compound or mass formed by concretion, spontaneous union, or coalescence of separate particles of matter in one body..

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..

Autogenously :: Autogenously (adv.) In an autogenous manner; spontaneously.

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

Willing :: Willing (v. t.) Spontaneous; self-moved.

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

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