HomeServicesBlogDictionariesContactSpanish Course
Home › Dictionary › English › birthline
← Back to search

Meaning of birthline | Babel Free

Noun CEFR B2

Definitions

A predicted line on the Hertzsprung-Russell diagram that relates the effective temperature and luminosity of pre-main-sequence stars at the start of their contraction.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

Birthmark birthmarked birthmate birthmonth birthmother birthname

Learn this word in context

See birthline used in real conversations inside our free language course.

Start Free Course