Definitions for: Spider

[n] predatory arachnid that usually has silk-spinning organs at the back end of the body; they spin silk to make cocoons for eggs or traps for prey
[n] a skillet made of cast iron
[n] a computer program that prowls the internet looking for publicly accessible resources that can be added to a database; the database can then be searched with a search engine

Webster (1913) Definition: Spi"der, n.[OE. spi[thorn]re, fr. AS. spinnan to spin;
-- so named from spinning its web; cf. D. spin a spider, G.
spinne, Sw. spindel. Seee Spin.]
1. (Zo["o]l.) Any one of numerous species of arachnids
comprising the order Araneina. Spiders have the mandibles
converted into poison fangs, or falcers. The abdomen is
large and not segmented, with two or three pairs of
spinnerets near the end, by means of which they spin
threads of silk to form cocoons, or nests, to protect
their eggs and young. Many species spin also complex webs
to entrap the insects upon which they prey. The eyes are
usually eight in number (rarely six), and are situated on
the back of the cephalothorax. See Illust. under

Note: Spiders are divided into two principal groups: the
Dipneumona, having two lungs: and the Tetrapneumona,
having four lungs. See Mygale. The former group
includes several tribes; as, the jumping spiders (see
Saltigrad[ae]), the wolf spiders, or Citigrad[ae]
(see under Wolf), the crab spiders, or
Laterigrad[ae] (see under Crab), the garden, or
geometric, spiders, or Orbitell[ae] (see under
Geometrical, and Garden), and others. See {Bird
spider}, under Bird, Grass spider, under Grass,
House spider, under House, Silk spider, under

2. (Zo["o]l.) Any one of various other arachnids resembling
the true spiders, especially certain mites, as the red
spider (see under Red).

3. An iron pan with a long handle, used as a kitchen utensil
in frying food. Originally, it had long legs, and was used
over coals on the hearth.

4. A trevet to support pans or pots over a fire.

5. (Mach.) A skeleton, or frame, having radiating arms or
members, often connected by crosspieces; as, a casting
forming the hub and spokes to which the rim of a fly wheel
or large gear is bolted; the body of a piston head; a
frame for strengthening a core or mold for a casting, etc.

Spider ant. (Zo["o]l.) Same as Solitary ant, under

Spider crab (Zo["o]l.), any one of numerous species of
maioid crabs having a more or less triangular body and ten
long legs. Some of the species grow to great size, as the
great Japanese spider crab (Macrocheira Kempferi),
measuring sometimes more than fifteen feet across the legs
when they are extended.

Spider fly (Zo["o]l.), any one of numerous species of
parasitic dipterous insects of the family
Hippoboscid[ae]. They are mostly destitute of wings, and
live among the feathers of birds and the hair of bats.
Called also bird tick, and bat tick.

Spider hunter (Zo["o]l.), any one of several species of
East Indian sunbirds of the genus Arachnothera.

Spider lines, filaments of a spider's web crossing the
field of vision in optical instruments; -- used for
determining the exact position of objects and making
delicate measurements. Fine wires, silk fibers, or lines
on glass similarly placed, are called spider lines.

Spider mite. (Zo["o]l.)
(a) Any one of several species of parasitic mites of the
genus Argas and allied genera. See Argas.
(b) Any one of numerous small mites injurious to plants.

Spider monkey (Zo["o]l.), any one of numerous species of
South American monkeys of the genus Ateles, having very
long legs and a long prehensile tail.

Spider orchis (Bot.), a European orchidaceous plant
(Ophrys aranifera), having flowers which resemble

Spider shell (Zo["o]l.), any shell of the genus
Pteroceras. See Pteroceras.

Synonyms: wanderer

See Also: arachnid, arachnoid, Aranea diademata, Araneae, Araneida, Araneus cavaticus, Argiope aurantia, barn spider, black and gold garden spider, black widow, comb-footed spider, computer program, computer programme, frying pan, frypan, garden spider, hunting spider, Latrodectus mactans, order Araneae, order Araneida, program, programme, skillet, tarantula, theridiid, trap-door spider, wolf spider

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