plural of seventeen-year locust

plural of seven-year apple

plural of seven-year itch

plural of thousand-year egg

(computing) An issue for computing and data storage situations in which time values are stored or calculated as a signed 32-bit integer, and this number is interpreted as the number of seconds since 00:00:00 UTC on 1 January 1970. Such implementations cannot encode times after 03:14:07 UTC on 19 January 2038

A series of conflicts between France and England, lasting 116 years from 1337 to 1453.

(medicine) A unit of measurement, equivalent to one year of life in perfect health, that can be used to decide whether a medical procedure is worthwhile for an individual.

plural of quality-adjusted life year

Indicates that the speaker is aged twenty.

A storm of such force that it occurs only once every one hundred years approximately.