isochrone
noun
isochrone is spelled I-S-O-C-H-R-O-N-E: 9 letters. It appears about once in every 85 million words in written English, the 293,966th most frequent word form (wordfreq, 2021 data). As a noun, isochrone means “An isoline on a map or chart connecting points that have the same value for some time-related variable” (English Wiktionary, September 2026). The plural of isochrone is isochrones.
How many letters and syllables are in isochrone?
| Letters | 9: I-S-O-C-H-R-O-N-E |
|---|---|
| In writing | about once in every 85 million words; the 293,966th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is isochrone?
Isochrone appears about once in every 85 million words in written English, the 293,966th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Forms of isochrone
- isochrones plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does isochrone mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
An isoline on a map or chart connecting points that have the same value for some time-related variable.
isochrones of urban development, isochrones of equal travel time
- 2
A semicubical parabola.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does isochrone come from?
See iso- and chrono-.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).