Standard Lemma guide

isochron

noun · 2 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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1

noun

Meaning 1

A line on a chart linking rock of the same age (as determined from isotope ratios).

Definition source: English Wiktionary via Wiktextract

Qualifier: geochemistry

Topics: geography, geology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A collection of points (such as a manifold), each point representing a set of initial conditions for a given dynamical system, such that every set results in the same long-term behaviour of the system.

Definition source: English Wiktionary via Wiktextract

Qualifier: dynamical systems

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Ancient Greek ῐ̓́σος (ĭ́sos)lbor. English iso- English chron English isochron From iso- + chron.

Across languages

Translations

2 source translations are retained for this English entry.

  • German: Isochrone — line on a chart linking rock of the same age
  • German: Isochrone — collection of points representing initial conditions of a dynamical system