Standard Lemma guide

intercalate

noun · verb · 7 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • Received-Pronunciation: /ɪnˈtɜː.kəl.eɪt/
  • Received-Pronunciation: /ˌɪn.tə.kəˈleɪt/
  • General-American: /ɪnˈtɝ.kəˌleɪt/
  • rhymes with -eɪt

1

noun

Meaning 1

An atom or molecule, or a substance, that enters between the layers of the crystal lattice of another substance, especially that of graphite.

Definition source: English Wiktionary via Wiktextract

Usage: attributive, often

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A compound formed by foreign atoms or molecules entering between the layers of a crystal lattice, especially that of graphite.

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

verb

Meaning 3

To insert an extra leap day into a calendar in order to maintain synchrony with natural phenomena.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

To insert an extra month into a calendar for the same purpose, such as for the Hebrew calendar.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

verb

Meaning 5

To insert a substance between two or more molecules, bases, cells, or tissues.

Definition source: English Wiktionary via Wiktextract

Qualifier: molecular biology

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

verb

Meaning 6

To insert anything somewhere (especially between other things), such as an affix into a word. (Compare interpolate.)

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

verb

Meaning 7

insert (days) in a calendar

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: add

History

Etymology

The verb is first attested in 1614, the noun in 1964; borrowed from Latin intercalātus, perfect passive participle of intercalō (“to proclaim that a day, an event, etc. has been intercalated; to insert”) (see -ate (verb-forming suffix) and -ate (noun-forming suffix)), from inter- (“between, among”) + calō (“to call; to proclaim”).

Across languages

Translations

10 source translations are retained for this English entry.

  • Bulgarian: вмъквам (vmǎkvam) — insert an extra day into a calendar
  • French: intercaler — insert an extra day into a calendar
  • Māori: kōkuhu rā — insert an extra day into a calendar
  • Spanish: intercalar — insert an extra day into a calendar
  • Māori: kōkuhu marama — insert an extra month into a calendar
  • Spanish: intercalar — insert an extra month into a calendar
  • Bulgarian: внедрявам (vnedrjavam) — insert a substance between two or more molecules, bases, cells, or tissues
  • Chinese Mandarin: 插层 (chācéng) — insert a substance between two or more molecules, bases, cells, or tissues
  • Māori: kōkuhu matū — insert a substance between two or more molecules, bases, cells, or tissues
  • Spanish: intercalar — insert a substance between two or more molecules, bases, cells, or tissues