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 all B2 English words →

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

Know this word better than we do? Language is a living thing — help us keep it growing. Collaborate with Babel Free