or ~e noun Etymology: International Scientific Vocabulary is- + -chron (from Greek chronos time) Date: 1881 an imaginary line or a line on a chart connecting points at which an event occurs simultaneously or which represents the same time or time difference
ISOCHRON
Meaning of ISOCHRON in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012