noun tor·por \ˈtr-pər\

: a state of not being active and having very little energy

Full Definition of TORPOR

a :  a state of mental and motor inactivity with partial or total insensibility
b :  a state of lowered physiological activity typically characterized by reduced metabolism, heart rate, respiration, and body temperature that occurs in varying degrees especially in hibernating and estivating animals

Examples of TORPOR

  1. The news aroused him from his torpor.
  2. <after a lifetime of setbacks, defeats, and failures, he could only greet the latest bad news with a resigned fatalism and dull torpor>

Origin of TORPOR

Middle English, from Latin, from torpēre
First Known Use: 13th century

Synonym Discussion of TORPOR

lethargy, languor, lassitude, stupor, torpor mean physical or mental inertness. lethargy implies such drowsiness or aversion to activity as is induced by disease, injury, or drugs <months of lethargy followed my accident>. languor suggests inertia induced by an enervating climate or illness or love <languor induced by a tropical vacation>. lassitude stresses listlessness or indifference resulting from fatigue or poor health <a depression marked by lassitude>. stupor implies a deadening of the mind and senses by shock, narcotics, or intoxicants <lapsed into an alcoholic stupor>. torpor implies a state of suspended animation as of hibernating animals but may suggest merely extreme sluggishness <a once alert mind now in a torpor>.

Other Physiology Terms

eructation, flux, gustatory, menarche, myopia, senescence
Medical Dictionary


noun tor·por \ˈtr-pər\

Medical Definition of TORPOR

:  a state of mental and motor inactivity with partial or total insensibility :  extreme sluggishness or stagnation of function


Next Word in the Dictionary: torporificPrevious Word in the Dictionary: torpitudeAll Words Near: torpor
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears