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
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