fiat. 1  an authoritative decree, sanction, or order: a royal fiat. Synonyms: authorization, directive, ruling, mandate, diktat, ukase. 2  a fixed form of words containing the word fiat, by which a person in authority gives sanction, or authorization.
Definitions for heartiness. Here are all the possible meanings and translations of the word heartiness. Princeton's WordNet(0.00 / 0 votes)Rate this definition: vigor, vigour, dynamism, heartiness(noun) active strength of body or mind. heartiness, wholeheartedness(noun) the quality of hearty sincerity.
Patency is defined as the state of being open or unobstructed, or showing an infection of parasites. When your arteries are free from obstruction, this is an example of patency.