单词 | alcyonium |
释义 | alcyoniumn. Zoology. Originally: †any of various sessile marine invertebrates, mainly soft corals and sponges (obsolete). In later use: spec. an alcyonarian coral of the genus Alcyonium, colonies of which form irregular fleshy masses on rocks and stones; esp. the well-known dead men's fingers, A. digitatum, of the north-east Atlantic; (also in form Alcyonium) the genus itself.The application of the genus name to a coral follows Linnaeus (1758), but early confusion arose from use of the name by Pallas (1766) and Lamarck (1815) for organisms later identified as sponges; cf. alcyonoid adj. 1. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Anthozoa Actinozoa > order Alcyonaria > genus Alcyonium alcyonium1607 alcyon1681 1607 E. Topsell Hist. Foure-footed Beastes 227 Take the head of a younge foxe burned with the leaues of blacke Orchanes and Alcyonium, and the powder cast vpon the head recouereth againe the haire. 1681 N. Grew Musæum Regalis Societatis iii. §1. iii. 279 The Middle white fistular Alcyonium. A Cluster of Coralline Tubes, in some places, meeting in parcels; in others, divaricated. 1753 Philos. Trans. 1751–2 (Royal Soc.) 47 460 Call'd madrepora, lithophyton or alcyonium. 1786 Philos. Trans. (Royal Soc.) 76 444 Infinite variety of corals, madrepores, alcyoniums. 1865 E. C. C. Agassiz Seaside Stud. Nat. Hist. 20 Halcyonium communities... When the animals, which are capable of great extension, are fully spread..such a polyp-stock has a mossy tufted look. 1892 E. R. Lankester tr. E. Haeckel Hist. Creation (ed. 4) II. 189 Our northern Cork-corals (Alcyonium). 1918 Amer. Naturalist 52 412 Among Alcyonoids, numerous species of the Alcyonium and Gorgonia tribes. 1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) iv. 33 (caption) Transverse section through the pharynx region of Alcyonium , showing the siphonoglyph and arrangement of the septa. 2001 J. A. Kaandorp & J. E. Kübler Algorithmic Beauty Seaweeds, Sponges, & Corals ii. 29 The presence of neighboring colonies reduced the rate of particle capture by the soft coral Alcyonium. This entry has been updated (OED Third Edition, September 2012; most recently modified version published online December 2021). < n.1607 |
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