arachnidn.
/əˈraknɪd/, U.S. /əˈræknəd/ Zoology.
A member of the Arachnida.
ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Arachnida > [noun] > member of
miteOE
spider1665
arachnidan1828
arachnidian1854
arachnidean1865
arachnid1869
1869 Huxley Introd. Classif. Animals 77 A Crustacean, an Arachnid, a Myriapod, or an Insect.
1881 Geikie in Nature No. 627. 3 There can be little doubt that it [scorpion] is the most ancient type of Arachnid.
Derivatives
Aˈrachnida n. [modern Latin] (plural) 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.
ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Arachnida > [noun]
Arachnida1834
1834 Penny Cycl. II. 232/1 The greater number of the arachnida are carnivorous.
aˈrachnidan adj. and n. (a) adj. of or belonging to the Arachnida; (b) n. an arachnid.
ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Arachnida > [adjective]
arachnidan1828
the world > animals > invertebrates > phylum Arthropoda > class Arachnida > [noun] > member of
miteOE
spider1665
arachnidan1828
arachnidian1854
arachnidean1865
arachnid1869
1828 W. Kirby & W. Spence Introd. Entomol. III. xxviii. 51 No genuine insect or Arachnidan has yet been found to inhabit the ocean.
1881 St. G. Mivart Cat 511 The arachnidan external parasite is a sort of itch insect.
arachnidean adj. and n. = arachnidan adj. and n.
ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Arachnida > [noun] > member of
miteOE
spider1665
arachnidan1828
arachnidian1854
arachnidean1865
arachnid1869
1865 in Morning Star 7 Nov. All the rails in front of my residence had their busy group of arachnidean workers.
arachˈnidial adj. [ < arachnidium n.] of or pertaining to the arachnidium.
ΚΠ
1877 T. H. Huxley Man. Anat. Invertebrated Animals vii. 381 The six prominent arachnidial mammillæ.
arachnidian adj. and n. = arachnidan adj. and n.
ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Arachnida > [noun] > member of
miteOE
spider1665
arachnidan1828
arachnidian1854
arachnidean1865
arachnid1869
1854 J. S. Bushnan in Orr's Circle Sci.: Org. Nature I. 77 The Pulmonary Arachnidians, of which the true spiders and the scorpion are examples.
arachnidium n. /ærækˈnɪdɪəm/ [modern Latin] the apparatus by which the spider produces its web.
/ærækˈnɪdɪəm/ [modern Latin] the apparatus by which the spider produces its web.ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Arachnida > [noun] > order Aranea > member of (spider) > parts of > spinning organ
arachnidium1877
1877 T. H. Huxley Man. Anat. Invertebrated Animals 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.
aˈrachnidous adj. of the nature of the Arachnida.
ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Arachnida > [adjective] > of nature of or resembling Arachnida
arachnoid1852
arachnidous1875
1875 Encycl. Brit. II. 273 The higher, at least, of the arachnidous orders.
This entry has not yet been fully updated (first published 1885; most recently modified version published online December 2021).
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