| 释义 |
Definition of pteroid in English: pteroidadjective ˈtɛrɔɪd Botany Having the characteristics of a fern of the genus Pteris or the family Pteridaceae; resembling a fern, filicoid.
adjective ˈtɛrɔɪd 1Chiefly Palaeontology. Especially of the shell of a bivalve mollusc: resembling a wing. rare. 2Palaeontology. Designating various body parts of a pterosaur associated with the small anterior flight membrane, especially a small, pointed bone that extends from the carpal region towards the shoulder and supports this membrane.
noun ˈtɛrɔɪd Palaeontology. The pteroid bone of a pterosaur.
Origin Mid 19th century; earliest use found in Charles Lyell (1797–1875), geologist. From scientific Latin pteroides, adjective from classical Latin pteris fern + -oīdēs. With the use as noun compare scientific Latin Pteroides, plural noun
mid 19th century; earliest use found in Robert Mayne (1808–1868). From ancient Greek πτερόν feather, wing + -oid, in sense A. 1 after scientific Latin pteroides, adjective. Definition of pteroid in US English: pteroidadjectiveˈtɛrɔɪd Botany Having the characteristics of a fern of the genus Pteris or the family Pteridaceae; resembling a fern, filicoid.
adjectiveˈtɛrɔɪd 1Chiefly Palaeontology. Especially of the shell of a bivalve mollusc: resembling a wing. rare. 2Palaeontology. Designating various body parts of a pterosaur associated with the small anterior flight membrane, especially a small, pointed bone that extends from the carpal region towards the shoulder and supports this membrane.
nounˈtɛrɔɪd Palaeontology. The pteroid bone of a pterosaur.
Origin Mid 19th century; earliest use found in Charles Lyell (1797–1875), geologist. From scientific Latin pteroides, adjective from classical Latin pteris fern + -oīdēs. With the use as noun compare scientific Latin Pteroides, plural noun<br>mid 19th century; earliest use found in Robert Mayne (1808–1868). From ancient Greek πτερόν feather, wing + -oid, in sense A. 1 after scientific Latin pteroides, adjective. |