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spider    音标拼音: [sp'ɑɪdɚ]
n. 蜘蛛,设圈套者

蜘蛛,设圈套者

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 [synonym: {spider}, {wanderer}]
3: a skillet made of cast iron

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]

39 Moby Thesaurus words for "spider":
Chilopoda, Chordata, Echiuroidea, Ectoprocta, Entoprocta,
Monoplacophora, Nemertinea, Phoronidea, arachnid, arthropod,
beetle, bug, caterpillar, centipede, chilopod, daddy longlegs,
diplopod, fly, harvestman, hexapod, insect, jenny, larva, maggot,
millepede, millipede, mite, mule, nymph, scorpion, silkworm,
skillet, spinner, spinning frame, spinning jenny, spinster,
tarantula, throstle, tick

(Or "robot", "crawler") A program that
automatically explores the {World-Wide 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 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.

Spider
The trust of the hypocrite is compared to the spider's web or
house (Job 8:14). It is said of the wicked by Isaiah that they
"weave the spider's web" (59:5), i.e., their works and designs
are, like the spider's web, vain and useless. The Hebrew word
here used is _'akkabish_, "a swift weaver."

In Prov. 30:28 a different Hebrew word (semamith) is used. It
is rendered in the Vulgate by stellio, and in the Revised
Version by "lizard." It may, however, represent the spider, of
which there are, it is said, about seven hundred species in
Palestine.


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