Phrase guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
noun
An unknown or hard-to-define influence; a factor with unknown or unforeseeable consequences.
Definition source: English Wiktionary via Wiktextract
Usage: idiomatic
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
A special talent, ability or quality or its indefinable cause.
Definition source: English Wiktionary via Wiktextract
Usage: idiomatic
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
Prothrombinase.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: factor X
Antonyms: none provided
noun
The proportionality constant which converts CO emission line brightness to molecular hydrogen mass.
Definition source: English Wiktionary via Wiktextract
Topics: astrophysics
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
Alternative spelling of X factor.
Definition source: English Wiktionary via Wiktextract
Usage: alt-of, alternative
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
No etymology was provided for this word.
Across languages
3 source translations are retained for this English entry.
