variation n. 1. the existence of qualitative di...
tandem reinforcement a schedule of reinforcement for a sing...
parasuicide n. a range of behaviors involving deliberate se...
honesty n. 1. in general, truthfulness, upright...
sodium pump a membrane protein that uses energy to actively...
nanometer (symbol: nm) n. 10–9 m (i.e., one billionth of a...