zooid


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Related to zooid: gastrozooid

zooid

 [zo´oid]
1. animal-like.
2. an animal-like object or form.

zo·oid

(zō'oyd),
1. Resembling an animal; an organism or object with an animalian appearance.
2. An animal cell capable of independent existence or movement for example, ovum or a spermatozoon, segment of a tapeworm.
3. An individual of a colonial invertebrate, such as coral.
[G. zoōdēs, fr. zōon, animal, + eidos, resemblance]

zooid

/zo·oid/ (zo´oid)
1. animal-like.
2. an animal-like object or form.
3. an individual in a united colony of animals.

zo·oid

(zō'oyd)
1. Resembling an animal; an organism or object with an animalian appearance.
2. An animal cell capable of independent existence or movement, as the oocyte or a sperm, or the segment of a tapeworm.
3. An individual of a colonial invertebrate, such as a coral.
[G. zoōdēs, fr. zōon, animal, + eidos, resemblance]

zooid

  1. any individual polyp of a colony of invertebrate animals that are linked together. For example, COELENTERATES have feeding polyps (gasterozoids), and reproductive polyps (gonozoids).
  2. a motile cell or body, such as a gamete, produced by an organism.

zooid

1. animal-like.
2. an animal-like object or form.
3. an individual in a united colony of animals.
References in periodicals archive ?
In Polyandrocarpa, SIV can be induced by fusing the anterior half of a bud fragment derived from a higher positional sector of the zooid body wall, with a posterior half derived from a lower positional sector (Kawamura and Watanabe, 1983).
Extensive proliferation was found in the epithelia and in the apparently pluripotent adult esophagus and epicardial structures that protrude into the buds and into the inner structures such as the brachial basket of the new zooid, strongly supporting their contributions in bud formation.
In contrast, if left under high-density conditions, none of the individuals grew but remained at one zooid (with only one bud developing per week) Other than this lack of increase in zooid number, these individuals looked healthy and robust.
The patterns of pores and pore plates within lateral zooid walls were examined using scanning electron microscopy (SEM).
membranacea induced earlier onset of reproduction in adjacent zooids than in zooids on the undamaged side of the same colony, showing within-colony variation in reproductive timing.
Colonies grow as new zooids bud distal to existing zooids, thereby forming regular lines of zooids that occasionally branch and extend from the colony center to the colony periphery (Fig.
Alternatively, new chimneys could form at the canopy edge since the colony grows by addition of new zooids at the edge of the colony (Dick, 1987).
Palleal reproduction involves the formation of a new bud from the peribranchial epithelium of a zooid.
Type of Species (mm) zooid time (d) brooding Botryllus scalaris 1.
A colorless hemolymph containing various kinds of circulating hemocytes flows inside the lacunae and sinuses of the zooid open circulatory system and in the tunic vasculature that connects all the zooids and buds of the colony.
Crump has worked with Vijay Iyer and in Joel Harrison's Free Country, while Ellman is in Henry Threadgill's Zooid band, and Fox has played with Joan Baez.
This suggests that none of the plasticity in the zooid morphologies that they detected was induced by biotic agents.