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Related to zooid: gastrozooid


One of the distinct individuals of a colonial invertebrate animal, such as a bryozoan, that arise asexually by budding.

zo·oid′al (-oid′l) adj.


1. (Zoology) any independent animal body, such as an individual of a coelenterate colony
2. (Biology) a motile cell or body, such as a gamete, produced by an organism
zoˈoidal adj


(ˈzoʊ ɔɪd)
1. any of the distinct individuals of an animallike compound or colonial organism, as a polyp of a bryozoan.
2. Also, zo•oi′dal. pertaining to, resembling, or of the nature of an animal.
[1850–55; < Greek zôi(on) animal + -oid]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.zooid - one of the distinct individuals forming a colonial animal such as a bryozoan or hydrozoanzooid - one of the distinct individuals forming a colonial animal such as a bryozoan or hydrozoan
organism, being - a living thing that has (or can develop) the ability to act or function independently
References in periodicals archive ?
In this animal, a functional adult zooid can be regenerated in 10-14 days from a small fragment of the colonial vasculature containing as few as 100 blood cells (Rinkevich et al.
We therefore included comparative analysis of telomerase activity in excised buds versus adult zooid tissue.
The budding cycle is a key component of allorecognition in this species, as each zooid can give rise to 1-4 new buds each week, depending on the growth conditions.
Funicular tissue is associated with minute communication pores in the zooid walls, providing the only means by which adjacent zooids may be physiologically connected (Carle and Ruppert, 1983; Mukai et al, 1997).
By "spermcasting" (Bishop and Pemberton, 2006), sperm can presumably be transferred to a different colony for fertilization, although the uptake of this sperm by another zooid of the same colony may also be possible.
If light of a minimum threshold intensity is required to stimulate larval release from each brooding zooid, then perhaps that threshold is not reached simultaneously at all brooding zooids in the field.
Colonial fusion may provide economic benefits for each zooid, because the respiration of each zooid is smaller in larger colonies (Nakaya et al.
Aging in modular organisms: ecology of zooid senescence in Steginoporella sp.
Each zooid bears a crown of tentacles (lophophores), which form a tightly packed canopy over the colony (Fig.
The treatments were "uninjured" controls (0 zooids killed), "4-zooid injuries" (4 zooids killed), "12-zooid injuries" (11 to 14 zooids killed), and "36-zooid injuries" (34 to 39 zooids killed).
Each zooid has a mouth, digestive tract, muscles, and nerve center.
Response of zooid size in Cupuladria exfragminis (Bryozoa) to simulated upwelling temperatures.