| siphonifer | <zoology> Any cephalopod having a siphonate shell. Origin: NL, fr. L. Sipho, -onis, siphon + ferre to bear. Source: Websters Dictionary (01 Mar 1998) |
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| siphoniferous | <zoology> Siphon-bearing, as the shell of the nautilus and other cephalopods. Origin: Siphon. Source: Websters Dictionary (01 Mar 1998) |