spontaneous

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Definition/MeaningWord/Phrase
spontaneous in speech, writing ad-lib , extempore , impromptu , improvised , off-the-cuff
spontaneous removal or casting off of a body part (as the tail of a lizard or claw or a lobster) especially when the organism is injured or under attack autotomy
infectious disease of domestic animals often resulting in spontaneous abortion; transmittable to human beings Bang's disease , brucellosis , contagious abortion
feeling of spontaneous good spirits blitheness , cheerfulness
poisonous oily liquid with a garlicky odor composed of 2 cacodyl groups; undergoes spontaneous combustion in dry air cacodyl , tetramethyldiarsine
spontaneous meeting concourse
artificial and not spontaneous contrived , factitious , mannered , studied
spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation decay , disintegration , radioactive decay
spontaneous loss of consciousness caused by insufficient blood to the brain deliquium , faint , swoon , syncope
sudden violent spontaneous occurrence (usually of some undesirable condition) eruption , irruption , outbreak
spontaneous connections during psychoanalysis free association
state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to b gas , gaseous state
spontaneous and unnecessary gratuitous , unjustified , unprompted
repeated spontaneous abortion (often for no known reason) habitual abortion
casual and spontaneous impromptu , off-the-cuff
strong spontaneous and irrational motivation irrational impulse
United States artist remembered for her spontaneous approach to painting; she was a founder of the New York school of abstract expressionism (1908-1984) Krasner , Lee Krasner
Italian physiologist who disproved the theory of spontaneous generation (1729-1799) Lazzaro Spallanzani , Spallanzani
actor situated in the audience whose acting is rehearsed but seems spontaneous to the audience plant
abnormal presence of air in the pleural cavity resulting in the collapse of the lung; may be spontaneous (due to injury to the chest) or induced (as a treatment for tuberculosis) pneumothorax
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