n. (Bot.) 1. any of several plants having seeds tipped with barbs that may cling to fur or clothing, especially those of the genus Bidens, also called bur marigold, beggar-ticks, and Beggar's ticks, which have prickly flattened achenes. RHUD [ 1913 Webster +PJC ]

2. a seed from a sticktight{ 1 }. [ PJC ]