Definition of palaechinoid in English:

palaechinoid

(also palaeechinoid)

noun peɪlɪˈkʌɪnɔɪdpalˈɛkɪnɔɪdpalɪˈkʌɪnɔɪd

Originally: an extinct echinoid (sea urchin) belonging to the former subclass Palaechinoidea, comprising all or most Palaeozoic echinoids, typically having more than two series of interambulacral plates. Now usually: a member of a more restricted group of Palaeozoic echinoids (sometimes classified as an order Palaechinoida) including the genus Palaechinus.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From scientific Latin Palaechinoidea, subclass name from palaeo- + Echinoidea, class name, with coalescence of the vowels. With later use compare scientific Latin Palechinus, Palaechinus, Palaeechinus, genus name.

Definition of palaechinoid in US English:

palaechinoid

(also palaeechinoid)

noun

Originally: an extinct echinoid (sea urchin) belonging to the former subclass Palaechinoidea, comprising all or most Palaeozoic echinoids, typically having more than two series of interambulacral plates. Now usually: a member of a more restricted group of Palaeozoic echinoids (sometimes classified as an order Palaechinoida) including the genus Palaechinus.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From scientific Latin Palaechinoidea, subclass name from palaeo- + Echinoidea, class name, with coalescence of the vowels. With later use compare scientific Latin Palechinus, Palaechinus, Palaeechinus, genus name.

词汇	palaechinoid
释义	Definition of palaechinoid in English: palaechinoid (also palaeechinoid) noun peɪlɪˈkʌɪnɔɪdpalˈɛkɪnɔɪdpalɪˈkʌɪnɔɪd Originally: an extinct echinoid (sea urchin) belonging to the former subclass Palaechinoidea, comprising all or most Palaeozoic echinoids, typically having more than two series of interambulacral plates. Now usually: a member of a more restricted group of Palaeozoic echinoids (sometimes classified as an order Palaechinoida) including the genus Palaechinus. Origin Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From scientific Latin Palaechinoidea, subclass name from palaeo- + Echinoidea, class name, with coalescence of the vowels. With later use compare scientific Latin Palechinus, Palaechinus, Palaeechinus, genus name. Definition of palaechinoid in US English: palaechinoid (also palaeechinoid) noun Originally: an extinct echinoid (sea urchin) belonging to the former subclass Palaechinoidea, comprising all or most Palaeozoic echinoids, typically having more than two series of interambulacral plates. Now usually: a member of a more restricted group of Palaeozoic echinoids (sometimes classified as an order Palaechinoida) including the genus Palaechinus. Origin Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From scientific Latin Palaechinoidea, subclass name from palaeo- + Echinoidea, class name, with coalescence of the vowels. With later use compare scientific Latin Palechinus, Palaechinus, Palaeechinus, genus name.
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