In-tér'ca-lâte, v. t.

v. t. [imp. & p. p. INTERCALATED; p. pr. & vb. n. INTERCALATING.] [Lat. intercalare, intercalatum, from inter, between, and calare, to call, proclaim; It. intercalare, Sp. intercalar, Fr. intercaler.] To insert between others; to introduce; as, (a.) (Chron.) To insert, as a day or other portion of time, in a calendar. (b.) (Geol.) To insert, as a bed or stratum, between the layers of a regular series of rocks.

Beds of fresh-water shells . . . are intercalated and interstratified with the shale. Mantell.