INTERCALATING

Verb

intercalating

present participle of intercalate

Adjective

intercalating (not comparable)

(chemistry) That intercalates

Source: Wiktionary

INTERCALATE

In*ter"ca*late, v. t. [imp. & p. p. Intercalated; p. pr. & vb. n. Intercalating.] Etym: [L. intercalatus, p. p. of intercalare to intercalate to intercalate; inter between + calare to call, proclaim. See Calendar.]

1. (Chron.)

Definition: 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.

Source: Webster’s Unabridged Dictionary 1913 Edition