Meanings

interstitial

lung substance

mercantile mind-set

rusticity

student temperament

professionalism

wise and clear-sighted

(practice of) simplicity and frugality

townsman's (independent) spirit

the way of the world in our time

martial spirit

characteristic temperament (spirit) of an actor

sheep in a tiger's skin

tendency to form collusive ties

recessive trait

anterior cingulate cortex

police questioning (of a suspicious person)

acquired characteristics (as opposed to inherited)

motor cortex (area of the brain just anterior to the central sulcus responsible for controlling voluntary muscle activity)

tone quality