n. In botany, a kind of inflorescence consisting of unisexual apetalous flowers growing in the axils of scales or bracts ranged along a stalk or axis; a catkin. The true ament or catkin is articulated with the branch and is deciduous; it is well seen in the inflorescence of the birch, willow, and poplar, and in the staminate inflorescence of the oak, walnut, and hazel. Also written amentum.