diving bell: diving apparatus for underwater work; has an open bottom and is supplied with compressed air
whole: an assemblage of parts that is regarded as a single entity
geraniales: an order of plants of subclass Rosidae including geraniums and many other plants; see Euphorbiaceae; Geraniaceae; Rutaceae; Malpighiaceae; Simaroubaceae; Meliaceae; Zygophyllaceae; Tropaeolaceae