| 释义 |
arachnid Zool.|əˈræknɪd|
[mod. f. Gr. ἀράχνη spider + -id; cf. F. arachnide.]
A member of the Arachnida. ‖ Aˈrachnida, n. pl. [mod.L.], a class of the Arthropoda, comprising spiders, scorpions, and mites; closely allied to Insects and Crustacea, but distinguished by the possession of eight legs, the absence of wings and antennæ, and by breathing by means of tracheal tubes or pulmonary sacs. aˈrachnidan, a. of or belonging to the Arachnida; n. an arachnid. arachnidean, -ian, a. and n. = prec. arachˈnidial, a. [f. next] of or pertaining to the arachnidium. ‖ arachnidium |ærækˈnɪdɪəm| [mod.L.], the apparatus by which the spider produces its web. aˈrachnidous, a. of the nature of the Arachnida.
1869Huxley Classif. Anim. 77 A Crustacean, an *Arachnid, a Myriapod, or an Insect. 1881Geikie in Nature No. 627. 3 There can be little doubt that it [scorpion] is the most ancient type of Arachnid.
1834Penny Cycl. II. 232/1 The greater number of the *arachnida are carnivorous.
1881Mivart Cat 511 The *arachnidan external parasite is a sort of itch insect.
1828Kirby & Spence Entomol. III. xxviii. 51 No genuine insect or *Arachnidan has yet been found to inhabit the ocean.
1865in Morn. Star 7 Nov., All the rails in front of my residence had their busy group of *arachnidean workers.
1854Bushnan in Orr's Circ. Sc. Org. Nat. I. 77 The Pulmonary *Arachnidians, of which the true spiders and the scorpion are examples.
1877Huxley Anat. Inv. An. vii. 381 The six prominent *arachnidial mammillæ.
Ibid. vii. 380 One of the most characteristic organs..is the *arachnidium, or apparatus by which the fine silky threads which constitute the web are produced.
1875Encyc. Brit. (ed. 9) II. 273 The higher, at least, of the *arachnidous orders. |