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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..

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

Free :: Free (superl.) Not gained by importunity or purchase; gratuitous; spontaneous; as, free admission; a free gift..

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

Autogenesis :: Autogenesis (n.) Spontaneous generation.

Kink :: Kink (v. i.) To wind into a kink; to knot or twist spontaneously upon itself, as a rope or thread..

Dichastic :: Dichastic (a.) Capable of subdividing spontaneously.

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..

Cacodyl :: Cacodyl (n.) Alkarsin; a colorless, poisonous, arsenical liquid, As2(CH3)4, spontaneously inflammable and possessing an intensely disagreeable odor. It is the type of a series of compounds analogous to the nitrogen compounds called hydrazines..

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

Panspermist :: Panspermist (n.) A believer in panspermy; one who rejects the theory of spontaneous generation; a biogenist.

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

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

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

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..

Dynamite :: Dynamite (n.) 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..

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

Ultroneous :: Ultroneous (a.) Spontaneous; voluntary.

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

Spontaneous :: Spontaneous (a.) Proceding from natural feeling, temperament, or disposition, or from a native internal proneness, readiness, or tendency, without constraint; as, a spontaneous gift or proportion..

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