parçac
Parçac is a term occasionally seen in Turkish-language texts but it is not a standard lexical item in contemporary Turkish. The conventional word for a fragment or particle is parçacık, formed from parça (piece) with a diminutive suffix. When the form parçac appears, it is usually the result of truncation of parçacık, a typographical variant, or, less commonly, part of a proper noun.
Etymology and usage: The form resembles the root parça plus a derivational pattern used in Turkish, but
References: For standard Turkish forms, consult reputable dictionaries such as the Turkish Language Association (TDK) resources.