In‐ter″ca‐late (?), v. t. [imp. & p. p.Intercalated (?); p. pr. & vb. n.Intercalating (?).] [L. intercalatus, p. p. of intercalare to intercalate to intercalate; inter between + calare to call, proclaim. See Calendar.]
1. (Chron.) To insert, as a day or other portion of time, in a calendar.
2. To insert among others, as a verse in a stanza; specif. (Geol.), to introduce 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.