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Any of various marine cnidarians of the class Scyphozoa, which includes most of the jellyfishes, characterized by the absence of a polyp stage or by a polyp that is extremely small.

[From New Latin Scyphozōa, class name : Greek skuphos, cup + New Latin -zōa, pl. of -zōon, -zoon.]

scy′pho·zo′an adj.


(Animals) any marine medusoid coelenterate of the class Scyphozoa; a jellyfish
(Animals) of, relating to, or belonging to the Scyphozoa
[C19: via New Latin from Greek skuphos bowl + zōion animal]


(ˌsaɪ fəˈzoʊ ən)

1. any cnidarian of the class Scyphozoa, comprising the true marine jellyfishes.
2. belonging or pertaining to the scyphozoans.
[1910–15; < New Latin Scyphozo(a)]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.scyphozoan - any of various usually free-swimming marine coelenterates having a gelatinous medusoid stage as the dominant phase of its life cycle
cnidarian, coelenterate - radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms
class Scyphozoa, Scyphozoa - coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes
References in periodicals archive ?
2002b; Amorocho & Reina, 2008), at many of these sites, green turtles consume large quantities of invertebrates (like scyphozoan jellyfish and sessile anemones) (Quinones et al.
New scyphozoan species in the Sea of Marmara: Chrysaora hysoscella, 2nd International Conference Oceanography of the Eastern Mediterranean and Black Sea, METU, 857-859, Ankara, Turkey.
For scyphozoan and cubozan species, the medusa stage is usually the life stage chosen for investigating global patterns of abundance, distribution, and diversity (Dawson et al.
Caption: Scyphozoan Cyanea capillata, lion's mane jellyfish
Scyphozoan jellyfish are conspicuous because of their relatively large size and ability to form dense blooms at seasonal intervals (Brusca & Brusca 2003).
A drifter--agile, scyphozoan --/a blob of streaks and patterns,/its light in the last hour.
Originally interpreted as fossils of scyphozoan medusae, these structures could represent one of only a half-dozen mass strandings documented from the fossil record.
The effect of dissolved oxygen concentration ([DO]) on budding of Aurelia aurita and Drymonema dalmatinum was investigated as part of a project to examine the effects of environmental variables on scyphozoan asexual reproduction.
Differential ingestion and digestion of bivalve larvae by the scyphozoan Chrysaora quinquecirrha and the ctenophore Mnemiopsis leidyi.
By inserting a carmine-soaked splinter into the mesoglea of a scyphozoan and describing the resultant accumulation of amoebocytes around this large foreign body that phagocytized the carmine, Metchnikoff pioneered the field of cellular immunology.
is one of the most widely distributed scyphozoan genera, ranging from 70[degrees]N and 55[degrees]S (Dawson & Martin, 2001); however, in the southern Pacific Ocean it is only recorded in inland waters of southern Chile (Pages & Orejas, 1999; Haussermann et al, 2009).
Drymonema dalmatinum, a large non-indigenous scyphozoan jellyfish, appeared in the northern Gulf of Mexico during fall 2000.