physiological need
21thumb-sucking — thumb suck·ing .sək iŋ n the habit of sucking a thumb beyond the period of physiological need …
22sex drive — noun a physiological need for sexual activity testosterone is responsible for the male sex drive • Hypernyms: ↑drive * * * sex drive noun The natural impulse and appetite for sexual relations • • • Main Entry: ↑sex * * * sex drive UK US …
23thirstiness — noun 1. a physiological need to drink • Syn: ↑thirst • Derivationally related forms: ↑thirsty, ↑thirsty (for: ↑thirst), ↑thirst (for: ↑ …
24sleep — sleepful, adj. sleeplike, adj. /sleep/, v., slept, sleeping, n. v.i. 1. to take the rest afforded by a suspension of voluntary bodily functions and the natural suspension, complete or partial, of consciousness; cease being awake. 2. Bot. to… …
25endocrine system, human — ▪ anatomy Introduction group of ductless glands (gland) that regulate body processes by secreting chemical substances called hormones (hormone). Hormones act on nearby tissues or are carried in the bloodstream to act on specific target organs… …
26drug use — Introduction use of drugs for psychotropic rather than medical purposes. Among the most common psychotropic drugs are opiates ( opium, morphine, heroin), hallucinogens (LSD, mescaline, psilocybin), barbiturates, cocaine, amphetamines,… …
27Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
28Psychology (The separation of) from philosophy — The separation of psychology from philosophy Studies in the sciences of mind 1815–1879 Edward S.Reed THE IMPOSSIBLE SCIENCE Traditional metaphysics The consensus of European opinion during and immediately after the Napoleonic era was that… …
29motivation — motivational, adj. motivative, adj. /moh teuh vay sheuhn/, n. 1. the act or an instance of motivating. 2. the state or condition of being motivated. 3. something that motivates; inducement; incentive. [1870 75; MOTIVE + ATION] * * * Factors… …
30attention — attentional, adj. n. /euh ten sheuhn/; interj. /euh ten shun /, n. 1. the act or faculty of attending, esp. by directing the mind to an object. 2. Psychol. a. a concentration of the mind on a single object or thought, esp. one preferentially… …
