birthline

Fetched 2026-10-26 (cache).

Synonyms: birthing, birthland, girtline, bistline

Antonyms: birthing, birthland, girtline, bistline

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|astronomy}} A predicted line on the [[Hertzsprung-Russell diagram]] that relates the effective [[temperature]] and [[luminosity]] of pre-[[main sequence|main-sequence]] [[star]]s at the start of their [[contraction]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.