Define X factor: a circumstance, quality, or person that has a strong but unpredictable influence.
Top Definition. X - Factor. an indescribable quality or something; something about a person that you cannot put your finger on; je ne sais quoi. I don't know what ...
the X factor meaning, definition, what is the X factor: a quality that you cannot describe that makes someone very special: . Learn more.
X factor definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Look it up now!
Definition of X factor - a noteworthy special talent or quality, a variable in a given situation that could have the most significant impact on the outcome.
X factor definition: an unknown or unexplained element that makes something more interesting or valuable | Meaning, pronunciation, translations and examples .
Definition of x-factor noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and ...
English. Alternative forms. x-factor · x factor. Noun. X factor (plural X factors). (idiomatic) An unknown or hard-to-define influence; a factor with ...
Medical Definition of X, factor. X, factor: A coagulation factor, a substance in blood essential to the normal clotting process. Production of factor X takes place in ...