Not active; submissive. [L. passivus, fr. patior, to endure]
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pas·sive 'pas-iv adj
1 a ) (1) lethargic or lacking in energy or will (2) tending not to take an active or dominant part <a \passive spouse>
b) induced by an outside agency <\passive exercise of a paralyzed leg>
2 a) of, relating to, or characterized by a state of chemical inactivity
b) not involving expenditure of chemical energy <\passive transport across a plasma membrane>
pas·sive·ly adv
pas·sive·ness n
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pas·sive (pasґiv) [L. passivus] neither spontaneous nor active; not produced by active efforts.Medical dictionary. 2011.