Determinant
Part of speech: noun
Definition: A determining factor; an element that determines the nature of something The unique scalar function over square matrices which is distributive over matrix multiplication, multilinear in the rows and columns, and takes the value of 1 for the unit matrix. Abbreviation: det A substance that causes a cell to adopt a particular fate.
Determiner
Part of speech: noun
Definition: A member of a class of words functioning in a noun phrase to identify or distinguish a referent without describing or modifying it. Examples of determiners include articles (a, the), demonstratives (this, those), cardinal numbers (three, fifty), and indefinite numerals (most, any, each).A dependent function in a noun phrase marking the NP as definite or indefinite. This function is usually filled by words in the determinative class but may be filled by other elements such as a genitive pronoun.Something that determines, or helps someone to determine, something else.