elater UK /ˈɛl.ə.tə/US /ˈɛl.ə.tɚ/noun 4/əˈleɪ.tɚ/ noun 1forms 1 noun4 •An elaterid, or click beetle. •A long, slender cell produced among spores and having hygroscopic secondary cell wall thickenings.The closest affinities of the Jubulaceae are with the Lejeuneaceae. The two families share in common: (a) elaters usually 1-spiral, trumpet-shaped and fixed to the capsule valves, distally[…] — 1992 •Any of the long, slender hygroscopic appendages attached to the spores of horsetails (genus Equisetum). •(no longer used) Elasticity; especially the expansibility of a gas. elater UK /ɪˈleɪ.tə/US /əˈleɪ.tɚ/ noun1 •That which elates. formselaters