Found 2 items, similar to intercalary.
English → English (WordNet) Definition: intercalary intercalary adj : added or having an addition to make the calender year correspond to the solar year; “Feb. 29 is an intercalary day”; “leap year is an intercalary year”
English → English (gcide) Definition: Intercalary Intercalary \In*ter"ca*la*ry\ (?; 277), a. [L. intercalaris, intercalarius: cf. F. intercalaire. See Intercalate.] [1913 Webster] 1. (Chron.) Inserted or introduced among others in the calendar; as, an intercalary month, day, etc.; -- now applied particularly to the odd day (Feb. 29) inserted in the calendar of leap year. See Bissextile, n. [1913 Webster] 2. Introduced or inserted among others; additional; supernumerary. “Intercalary spines.” --Owen. [1913 Webster] This intercalary line . . . is made the last of a triplet. --Beattie. [1913 Webster] Intercalary day (Med.), one on which no paroxysm of an intermittent disease occurs. --Mayne. [1913 Webster]