Exacting :: Exacting (a.) Oppressive or unreasonably severe in making demands or requiring the exact fulfillment of obligations; harsh; severe.
Exaction :: Exaction (n.) The act of demanding with authority, and compelling to pay or yield; compulsion to give or furnish; a levying by force; a driving to compliance; as, the exaction to tribute or of obedience; hence, extortion..
Exaction :: Exaction (n.) That which is exacted; a severe tribute; a fee, reward, or contribution, demanded or levied with severity or injustice..
Hexactinellid :: Hexactinellid (a.) Having six-rayed spicules; belonging to the Hexactinellinae.
Hexactinelline :: Hexactinelline (a.) Belonging to the Hexactinellinae, a group of sponges, having six-rayed siliceous spicules..