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nautiloid
[ nawt-l-oid ]
noun
- a mollusk of the subclass Nautiloidea, including nautiluses and many fossil species that were abundant in the Ordovician and Silurian periods.
adjective
- noting or pertaining to a nautiloid.
nautiloid
/ 藞苍蓴藧迟瑟藢濒蓴瑟诲 /
noun
- any mollusc of the Nautiloidea, a group of cephalopods that includes the pearly nautilus and many extinct forms
adjective
- of, relating to, or belonging to the Nautiloidea
nautiloid
- Any of various cephalopod mollusks of the subclass Nautiloidea, having a straight or coiled shell divided internally into a series of chambers of increasing size connected by a central tube. The nautiloids include the modern nautiluses as well as numerous extinct species dating back as far as the Cambrian Period.
亚洲网紅露点 History and Origins
Origin of nautiloid1
Example Sentences
What you鈥檙e looking at is an ancient nautiloid 鈥 a creature that resembles a squid stuffed into a shell and that lived about 450 million years ago, during the Ordovician period.
Hastigerina only differs in the 鈥渇lat鈥 or nautiloid spiral.
From the fact that Aplysia commences its life as a free-swimming veliger with a nautiloid shell not enclosed in any way by the border of the mantle, it is clear that the enclosure of the shell in the adult is a secondary process.
Cephalic shield pointed behind; shell internal, chiefly membranous, with calcified nucleus, nautiloid; parapodia forming fins.
He referred also to the nautiloid shell of the larva falling to one side.
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