caffeine n. a CNS stimulant found in coffee, tea, cola, coc...
stimulus situation all the components of an occurrence or e...
normative adj. relating to a norm: pertaining to a particul...
headache n. a pain in the head from any cause. Examples inc...
hypnotic 1. n. a drug that helps induce and sus...
hypothalamic–hypophyseal portal system see hypothalamic–pit...