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elater In most liverworts (Hepaticae), 1 of many long, thin cells mixed with the spores in the capsule of the sporophyte that assist in spore dispersal. Helical thickening in the wall of an elater causes increasing tension as the capsule dries. When the capsule bursts the tension is released and the spores are forcibly ejected.

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elater †elasticity XVII; skipjack beetle; (bot.) elastic spiral filament XIX. modL. — Gr. elatḗr driver. f. *elaF-, elaúnein drive.

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