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单词 ptero-
释义 ptero-|pt-, tɛrəʊ|
before a vowel pter-, combining form of Gr. πτερόν feather, wing; an element of many scientific words. ˈpterobranch [ad. mod.L. Pterobranchia, f. F. ptérodibranche (H. de Blainville 1816, in Bull. Sci. Soc. Philomatique XXVIII. 122)], a small marine, usually colonial, animal belonging to the class Pterobranchia of the phylum Hemichordata; also attrib.; pterobranchiate |-ˈbræŋkɪət| a. Zool. [Gr. βράγχια gills], of or pertaining to the Pterobranchia, an order of pteropods in the classification of J. E. Gray, or a subsection in Lankester's classification of molluscoids; so pteroˈbranchious a.: see quot. pteroˈcardiac Zool. [Gr. καρδία heart], (a) adj. denoting an ossicle in the stomach of the crayfish, which is wing-like in shape; (b) n. the pterocardiac ossicle. pteroˈcarpous a. Bot. [Gr. καρπός fruit], having winged seeds or fruit (Mayne). pteroˈcarpus, a genus of tropical timber trees, N.O. Leguminosæ. pteroˈcymba, a cymbate flesh-spicule of a sponge having winged or expanded proræ, giving an anchor-like figure; hence pteroˈcymbate a. (Cent. Dict. 1890). pteroˈglossal a. [Gr. γλῶσσα tongue], having a tongue finely notched or divided like a feather, as a toucan of the genus Pteroglossus; so pteroˈglossine a. pteˈrographer [Gr. -γράϕος writer], a writer on feathers or plumage. pteˈrography [-graphy], the description of feathers or plumage; hence pteroˈgraphic, pteroˈgraphical adjs., of or pertaining to pterography. ˈpterolite Min. [Gr. λίθος stone]: see quot. pteˈrology [Gr. λογία -logy], the department of entomology which deals with the wings of insects; hence pteroˈlogical a., pertaining to pterology. ˈpteromorph(a) [-morph], in certain mites, a wing-like appendage attached to the cephalothorax. pteroˈpædes n. pl. Ornith. [mod.L., f. Gr. παῖς, παιδ- child], birds which are fully fledged when hatched; hence pteroˈpædic, of or of the nature of the Pteropædes. pteroˈpegum, pl. -a [mod.L., f. Gr. πηγός fastened], the socket of the wing of an insect; hence pteroˈpegal, pteroˈpegous adjs. pteroˈpleuron Ent., in Diptera, the section of the thorax from which the wings arise. ˈpterorhine a. Ornith. [Gr. ῥῐ́ς, ῥῑν- nose], of or pertaining to the Pterorhīna, a division of Alcidæ or auks having the nostrils feathered (Cent. Dict. 1890). pteroˈstigma Entom. [Gr. στίγµα spot, mark], a peculiar mark or spot on the wings of some insects, esp. Hymenoptera; the stigma; hence pteroˈstigmal, ˌpterostigˈmatic, ˌpterostigˈmatical adjs., of, pertaining to, or characterized by a pterostigma. pteroˈtheca Entom. [mod.L., f. Gr. θηκή sheath], the wing-case of an insect in the pupa.
1949New Biol. VI. 118 The construction of the tubes in which both Graptolites and *Pterobranchs live gives good reason for accepting Kozlowski's thesis.1962D. Nichols Echinoderms xiv. 175 Grobben has shown the principal transformations necessary to convert a pterobranch hemichordate into an echinoderm.1968A. S. Romer Procession of Life vii. 141 The pterobranchs are tiny animals, only a fraction of an inch in size, living in colonial fashion within branching tubes, with, superficially, the appearance of tiny stemmed flowers.1978Nature 23 Nov. 318/3 Examples of arborescent growth occur among sponges, hydroids, graptolites, pterobranchs.
1885E. R. Lankester in Encycl. Brit. XIX. 436/1 A serious error has been made in comparing the contractile stalk of the *Pterobranchiate polypide to the ‘funiculus’ or cord-like mesentery of Eupolyzoa.
1858Mayne Expos. Lex., Pterobranchius, applied by Blainville to an Order..of the..Pteropoda, having the branchiæ in form of wings or fins: *pterobranchious.
1870Rolleston Anim. Life 103 A small ossicle, the ‘*pterocardiac’, articulates with either outer angle of the cardiac.1877Huxley Anat. Inv. Anim. vi. 319 A small curved triangular antero-lateral or pterocardiac ossicle.
1866Livingstone Last Jrnls. (1873) I. ii. 48 One tree of which bark cloth is made, *pterocarpus, is abundant.
1887Sollas in Encycl. Brit. XXII. 417/2 A common form of anchorate, the *pterocymba, results.
1887Amer. Naturalist XXI. 585 Particular styles of imbrication of the cubital coverts with certain structural peculiarities—osteological, myological, visceral, and *pterographical.
1896Chester Dict. Min., *Pterolite..an altered lepidomelane, found in fan-shaped or feather-shaped aggregations.
1907Nature 12 Dec. 142/2 The species [of mites] are to be called Oribata bostocki, distinguished by the *pteromorphæ being attached to the anterior margin of the abdomen instead of its lateral margin.1952Baker & Wharton Introd. Acarology viii. 387 Within the Aptyctima we find several natural groups based on..the possession or lack of pteromorphs or wings.1959T. E. Hughes Mites viii. 113 When big pteromorphae are present, they can usually be depressed by special muscles.1962New Scientist 20 Sept. 628/2 One group of mites is unique in possessing hinged outgrowths similar to wings, called pteromorphs.1972L. Gozmány tr. Balogh's Oribatid Genera of World 22 The pteromorpha is a horizontal or inferiorly deflected chitinous lamella.
1885Standard Nat. Hist. IV. 3 A few birds remain so long within the egg that the feathers are developed when the shell bursts,..these might be called *Pteropædes.
1826Kirby & Sp. Entomol. III. xxxiii. 372 *Pteropega (the Wing-socket), the space in which the organs for flight are planted.
1858Mayne Expos. Lex., Pteropega, Entomol., applied by Kirby to the portion of the mesothorax and metathorax to which the superior and inferior wings are attached: *pteropegous.
1884C. R. Osten-Sacken in Trans. Entomol. Soc. 503 *Pteropleura, situated under the insertion of the wing, and behind the mesopleural structure.1951Colyer & Hammond Flies Brit. Isles 24 The wings arise from the pteropleuron.1977Richards & Davies Imms's Gen. Textbk. Entomol. (ed. 10) II. iii. 961 The pteropleuron (= dorsal part of mesepimeron) lies below the root of the wing.
1861H. Hagen Synops. Neuropt. N. Amer. 9 *Pterostigma triangular.
Ibid., Wings with obscure black veins, *pterostigmal spot absent.
Ibid. 149 Two angulose bands, the one nodal, the other *pterostigmatical.1886Proc. Boston Soc. Nat. Hist. 265 The wider venation and..the brown pterostigma without darker nebula separate this species from all related ones.Ibid. 288 Wings pale, yellow in the pterostigmatical part.
1826Kirby & Sp. Entomol. III. xxxi. 250 The breast (pectus)..from which proceed the wing-cases (*Ptero-theca) and leg-cases (Podo-theca).
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