'Catkin' definitions:
Definition of 'catkin'
(from WordNet)
noun
A cylindrical spikelike inflorescence [syn: catkin, ament]
Definition of 'Catkin'
From: GCIDE
- Catkin \Cat"kin\ (k[a^]t"k[i^]n), n. [Cat + -kin.] (Bot.) An ament; a species of inflorescence, consisting of a slender axis with many unisexual apetalous flowers along its sides, as in the willow and poplar, and (as to the staminate flowers) in the chestnut, oak, hickory, etc. -- so called from its resemblance to a cat's tail. See Illust. of Ament. [1913 Webster]