slovodefinícia
spider
(mass)
spider
- pavúk
spider
(encz)
spider,pavouk n:
Spider
(gcide)
Spider \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. See Spin.]
1. (Zool.) 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
Araneina.
[1913 Webster]

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
Saltigradae), the wolf spiders, or Citigradae (see
under Wolf), the crab spiders, or Laterigradae (see
under Crab), the garden, or geometric, spiders, or
Orbitellae (see under Geometrical, and Garden),
and others. See Bird spider, under Bird, {Grass
spider}, under Grass, House spider, under House,
Silk spider, under Silk.
[1913 Webster]

2. (Zool.) Any one of various other arachnids resembling the
true spiders, especially certain mites, as the red spider
(see under Red).
[1913 Webster]

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.
[1913 Webster]

4. A trevet to support pans or pots over a fire.
[1913 Webster]

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.
[1913 Webster]

Spider ant. (Zool.) Same as Solitary ant, under
Solitary.

Spider crab (Zool.), 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 (Zool.), any one of numerous species of
parasitic dipterous insects of the family Hippoboscidae.
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 (Zool.), 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. (Zool.)
(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 (Zool.), 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
spiders.

Spider shell (Zool.), any shell of the genus Pteroceras.
See Pteroceras.
[1913 Webster]
spider
(wn)
spider
n 1: predatory arachnid with eight legs, two poison fangs, two
feelers, and usually two silk-spinning organs at the back
end of the body; they spin silk to make cocoons for eggs or
traps for prey
2: 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 [syn: spider, wanderer]
3: a skillet made of cast iron
spider
(foldoc)
spider

(Or "robot", "crawler") A program that
automatically explores the web by retrieving a
document and recursively retrieving some or all the documents
that are referenced in it. This is in contrast with a normal
web browser operated by a human that doesn't automatically
follow links other than inline images and URL redirection.

The algorithm used to pick which references to follow
strongly depends on the program's purpose. Index-building
spiders usually retrieve a significant proportion of the
references. The other extreme is spiders that try to validate
the references in a set of documents; these usually do not
retrieve any of the links apart from redirections.

The standard for robot exclusion is designed to avoid some
problems with spiders.

Early examples were Lycos and WebCrawler.

{Home
(http://info.webcrawler.com/mak/projects/robots/robots.html)}.

(2001-04-30)
spider
(jargon)
spider


The Web-walking part of a search engine that collects pages for indexing in
the search engine's database. Also called a bot. The best-known spider is
Scooter, the web-walker for the Alta Vista search engine.
podobné slovodefinícia
spider
(mass)
spider
- pavúk
comb-footed spider
(encz)
comb-footed spider, n:
early spider orchid
(encz)
early spider orchid, n:
garden spider
(encz)
garden spider, n:
hunting spider
(encz)
hunting spider, n:
red spider
(encz)
red spider, n:
red spider mite
(encz)
red spider mite, n:
sea spider
(encz)
sea spider, n:
spider
(encz)
spider,pavouk n:
spider angioma
(encz)
spider angioma, n:
spider brake
(encz)
spider brake, n:
spider crab
(encz)
spider crab, n:
spider fern
(encz)
spider fern, n:
spider flower
(encz)
spider flower,luštěnice trnitá n: [bio.] rostlina Nijel
spider hole
(encz)
spider hole,zákop pro jednoho vojáka n: [voj.] [amer.] určený k
pozorování web
spider mite
(encz)
spider mite, n:
spider monkey
(encz)
spider monkey,chápán Zdeněk Brož
spider nevus
(encz)
spider nevus, n:
spider orchid
(encz)
spider orchid, n:
spider plant
(encz)
spider plant,luštěnice trnitá n: [bio.] rostlina Nijel
spider web
(encz)
spider web,pavučina n: Nijel