adjective. having a day or month inserted to make the calendar year correspond to the solar year: "Feb. 29 is an intercalary day".
- intercalarius (Latin)
- intercalaris (Latin)
Example sentences of the word intercalary
In John Steinbeck’s “The Grapes of Wrath,” nearly every other chapter is an intercalary chapter.
2. Noun, singular or mass
Every four years there is a leap year, when one extra day, called an intercalary, is added.