tail

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tail

1
1. the region of the vertebrate body that is posterior to or above the anus and contains an elongation of the vertebral column, esp forming a flexible movable appendage
2. the rear part of an aircraft including the fin, tail plane, and control surfaces; empennage
3. Astronomy the luminous stream of gas and dust particles, up to 200 million kilometres long, driven from the head of a comet, when close to the sun, under the effect of the solar wind and light pressure
4. Angling the lowest fly on a wet-fly cast
5. a final short line in a stanza
6. the lower end of a pool or part of a stream

tail

2 Property law
1. the limitation of an estate or interest to a person and the heirs of his body
2. (of an estate or interest) limited in this way

tail

Short for comet tail.

Tail

 

a more or less isolated and mobile posterior section of the body in vertebrates that performs various functions.

In fishes the tail section is not sharply differentiated from the body and is usually equipped with a large fin—the main organ of locomotion. The tail of terrestrial vertebrates does not perform a locomotive function, although in many animals, for example, caudate amphibians and reptiles, it serves as an auxiliary organ of locomotion. In extant birds the caudal section proper of the spine is shortened; in Carinatae it is represented by five to seven vertebrae that are concresced into the coccyx, or pygostyle, which supports the rectrices. The tail of mammals is a slender, mobile appendage of varying length; the skeletal axis consists of three to 49 free vertebrae.

The tail may be prehensile, serving as an aid in climbing (opossums, certain anteaters and monkeys, raccoons). It may serve as an organ of support and a rudder in some jumping animals (kangaroos, jerboas, great jerboas), or it may act as a parachute (squirrels, dormouses). The short tail of whales and sirens has developed a fin and, thus, performs a locomotive function. Some animals, for example, horses and cattle, drive away flying insects with their tails. In a number of mammals the tail is reduced.

In the human embryo a tail appears at the end of the first month or the beginning of the second. With normal development it disappears during the third month. The presence of a tail in a human in the postembryonic period is an example of atavism.

What does it mean when you dream about a tail?

A tail can refer to excitement, as in a dog that wags its tale, or the opposite, as when a tail is dragged between one’s legs. There are numerous idioms involving this word, and dreams in which a tail is featured can be alluding to the meaning of any one of them: “turn tail,” “on someone else’s coattails,” a “tail wagging the dog,” or the “tail end” of something.

tail

[tāl]
(aerospace engineering)
The rear part of a body, as of an aircraft or a rocket.
The tail surfaces of an aircraft or a rocket.
(astronomy)
The part of a comet that extends from the coma in a direction opposite to the sun; it consists of dust and gas that have been blown away from the coma by the solar wind and the sun's radiation pressure.
(electronics)
A small pulse that follows the main pulse of a radar set and rises in the same direction.
The trailing edge of a pulse.
(mathematics)
For a stochastic process represented by x (t1), x (t2),…, the process obtained by deleting the first n terms, for some n.
(vertebrate zoology)
The usually slender appendage that arises immediately above the anus in many vertebrates and contains the caudal vertebrae.
The uropygium, and its feathers, of a bird.
The caudal fin of a fish or aquatic mammal.

tail

1. Exposed lower portion of a slate shingle.
2. Tailing.
3.See rafter tail.
4.See lookout.

tail

tail
tail
i. The rear part of a body, as of an aircraft, a rocket, etc.
ii. The tail surfaces of an aircraft or rocket.
References in periodicals archive ?
As well as the tailless whip scorpions and giant vinegaroons, people will be able to hold things like flat rock scorpions, giant African train millipedes, Chile rose tarantula, pink toe tarantula, royal pythons, frogs and cock-cock roaches.
1324, November 1943, 'Comments on design of a tailless glider with swept forward wing.
12) Dromio, I wish to suggest, does not only think that he has become a "counterfeit," "imitation," or "fool" but also a Barbary ape: the tailless monkey described in ancient Greek proverbs and natural histories as tamable, trainable, and above all capable of substituting, under the proper circumstances, for a human being.
the tailless, unmanned aircraft launched from Pax River and flew for a planned 35 minutes.
Based on this evidence, we hypothesized that, in general, Coleonyx with tails should have an advantage over tailless geckos in escaping from predators.
Biju, has named the new family Chikilidae, which means Caecilian in Garo, the local tribal language-consisting of tailless burrowing caecilians that evolved separately from other caecilian species more than 140 million years ago.
The comet was described by Garradd as a tailless object with an approximately circular coma of diameter 15".
Finally, chapter 4 addresses not only the tailless design of Northrop's XP-56 but also the company's construction components and techniques.
Northrop Grumman designed, produced and is currently flight testing two tailless, autonomous X-47B unmanned aircraft for the Navy's Unmanned Combat Air System Carrier Demonstration (UCAS-D) program.
The South American tailless rodent can be hand fed by her keeper so visitors can get the chance to see her up close.
Among the wide range of reptiles being sold in the shop is the Tailless Whip Scorpion - which walks like a crab and looks like a spider.
That's the tailless black sow that rushes from the ashes of the bonfire to chase the last person loitering around at night all the way home.