coming or resulting from a natural impulse or tendency; without effort or premeditation; natural and unconstrained; unplanned:
a spontaneous burst of applause.
(of a person) given to acting upon sudden impulses.
(of natural phenomena) arising from internal forces or causes; independent of external agencies; self-acting.
growing naturally or without cultivation, as plants and fruits; indigenous.
produced by natural process.
(of a plant species, such as rhododendron) spreading naturally after having originally been introduced
occurring, produced, or performed through natural processes without external influence: spontaneous movement
arising from an unforced personal impulse; voluntary; unpremeditated: a spontaneous comment
(of plants) growing naturally; indigenous
1. substantive. 2. substantively. 3. substitute. abbreviation 1. substantive 2. substitute subst. 1. substantival 2. substantive 3. substitute
noun 1. the component part of a microscope below the stage, for supporting a condenser, mirror, or other accessories. noun 1. the part of a microscope below the stage, usually consisting of an adjustable assembly holding a condenser lens for illuminating the specimen
noun 1. that of which a thing consists; physical matter or material: form and substance. 2. a species of matter of definite chemical composition: a chalky substance. 3. controlled substance. 4. the subject matter of thought, discourse, study, etc. 5. the actual matter of a thing, as opposed to the appearance or shadow; reality. 6. […]
noun 1. long-term, pathological use of alcohol or drugs, characterized by daily intoxication, inability to reduce consumption, and impairment in social or occupational functioning; broadly, alcohol or drug addiction. substance abuse n. Excessive use of a potentially addictive substance, especially one that may modify body functions, such as alcohol and drugs. Also called chemical abuse. […]