1
- a factor which decisively affects the nature or outcome of something（影响事物本质或结果的）决定性因素：
pure force of will was the main determinant of his success.
他成功的主要决定性因素是他纯粹的意志力。
1.1
- Biology a gene or other factor which determines the character and development of a cell or group of cells in an organism, a set of which forms an individual's idiotype【生】决定子, 因子; 决定簇, 决定因素。
2
- Mathematics a quantity obtained by the addition of products of the elements of a square matrix according to a given rule【数】行列式, 方阵。
- serving to determine or decide something决定性的。
词源
early 17th cent.: from Latin determinant- 'determining'， from the verb determinare （see DETERMINE）.