exacting (Adjective) — Severe and unremitting in making demands. ex. "an exacting instructor"
exacting (Adjective) — (microbiology) having complicated nutritional requirements; especially growing only in special artificial cultures. ex. "certain highly specialized xerophytes are extremely exacting in their requirements"
exacting (Adjective) — Requiring precise accuracy. ex. "an exacting job"
exacting (Adjective) — Requiring more than usually expected or thought due, especially great patience, effort, and skill. ex. "found the job very exacting"
exacting (Verb) — Claim as due or just. ex. "The bank exacted payment of the loan"
exacting (Verb) — Take as an undesirable consequence of some event or state of affairs.