element (of a set)

acrylic acid cyclohexyl ester air compressor suction strainer bag-type strainer bamba r. craigs external irradiation protection external scaffolding femto-moles gland stud idea leuconoe clara jersey buff turkey nightspot Puccinellia shuanghuensis qena rate of lubricating oil consumption seapower syndrome differentiation tropical zoology vegetation continuum concept Whorfian hypothesis