Definition of "quinquagenarian" in Englisch

noun

1. (obsolete, rare) Synonym of pentecoster: an officer who commands 50 men.

2. Synonym of fiftysomething: a person between 50 and 59 years old.

adjective

1. (obsolete, rare) Of or related to command over 50 men.

2. Of or related to fiftysomethings.