plural of periodic inequality

plural of periodic month

Synonym of tropical month

The state of a woman too poor to be able to afford sanitary products (tampons, sanitary towels and the like) connected to her period.

The period following postclassical history (in Europe known as the "Middle Ages"), spanning from about 1500 to the present.

(idiomatic, slang, euphemistic) Menstruating.

(historical) A period between circa 4000 to 3100 BC which saw the emergence of urban life in Mesopotamia and the Sumerian civilization.

(historical) The Uruk period.

(UK, television) A period of time on a Saturday during which football matches may not be broadcast (so as to avoid reduced attendance in person at other football matches that are not being televised).

plural of periodic acid