X factor (English, noun)
expansion: X factor (plural X factors)
Senses:
glosses: An unknown or hard-to-define influence; a factor with unknown or unforeseeable consequences.
tags: idiomatic
glosses: A special talent, ability or quality or its indefinable cause.
tags: idiomatic
glosses: Prothrombinase.
topics: astrophysics
glosses: The proportionality constant which converts CO emission line brightness to molecular hydrogen mass.
Forms:
form: X factors
tags: plural
form: x-factor
tags: alternative
form: x factor
tags: alternative