• (n.) One of certain minute coiled threads in the coating of some seeds. When moistened these threads protrude in great numbers.
Spi'ri·cle noun [ Dim., from Latin spira a coil.] (Botany) One of certain minute coiled threads in the coating of some seeds. When moistened these threads protrude in great numbers. Gray. 
spiricle One of certain minute coiled threads in the coating of some seeds. When moistened these threads protrude in great numbers.