exosystem n. in ecological systems theory, those societal s...
chi-square (symbol: χ2) n. a statistic that is the sum of t...
filled-space illusion a source of distortion in estimating...
D-cognition n. see being cognition.
echinacea n. an herbal agent derived from any of nine relat...
piloerection n. a temporary raising of the hairs covering t...