nautiliform
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nautiliform — see nautiloid … Dictionary of invertebrate zoology
nautiliform — adjective Having the spiral form of a nautilus … Wiktionary
nautiliform — nau·til·i·form … English syllables
nautiloid — adj. [Gr. nautilos, nautilus shell; eidos, form] (MOLLUSCA: Cephalopoda) Any nautilid shell coiled in a symmetrical involute spiral; nautiliform … Dictionary of invertebrate zoology