elater

noun el·a·ter \ˈe-lə-tər\

Definition of ELATER

: a plant structure functioning in the dispersal of spores: as

a : one of the elongated filaments among the spores in the capsule of a liverwort

b : one of the filamentous appendages of the spores in the horsetails

New Latin, from Greek elatēr driver, from elaunein to drive

First Known Use: 1830

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