(a.) Related to, or resembling, the hydra; of or pertaining to the Hydroidea.
(n.) One of the Hydroideas.
Example Sentences:
(1) The particles are surfaces for the attachment of diatoms and hydroids.
(2) A technique is described which was developed for this purpose with the use of a clonal hydroid; preliminary results from Swansea Bay show that it is sensitive to the variations in water quality that occur there.
(3) Aqueous extracts of the colony portions were assayed using six bioassay regimes namely, toxicity to mice, toxicity to a coral and a hydroid, cytolytic activity on sheep erythrocytes and sea urchin ova and for antimicrobial activity on eight bacterial species.
(4) Perhaps in the stem lineage of the Bilateria a hydroid-like or medusoid-like ancestor fell over on one side onto a substrate (pleurothetism).
(5) Hydranths of the colonial marine hydroid Campanularia flexuosa (phylum Cnidaria, class Hydrozoa, order Calyptoblastea) have a mean life span of approximately 7 days in intact colonies in culture.
(6) We have sequenced three partial (77 bp) fragments of Antennapedia (Antp) class homeoboxes from the hydroids Hydractinia symbiolongicarpus and Eleutheria dichotoma.
(7) Three thecata hydroid species also grew in large numbers on the surface of the weeds.
(8) Trimethyl amine oxide, dimethyl amine and choline chloride have been isolated from the marine hydroid Tubularia larynx and identified using physical constants and spectral data.
(9) In contrast with hierarchies in other hydroids, T. solitaria's HP system dominates the SP system.
(10) Support provided by the desmocytes to the upright stolon is limited by three factors that characterize the athecate hydroid: distribution of perisarc, pattern of growth, and extent of movement.
(11) Obelin, the Ca(2+)-activated luminescent protein from the hydroid Obelia geniculata, was sealed inside pigeon erythrocyte ;ghosts' in order to investigate effects on their permeability of different methods of preparation and of the bivalent cation ionophore A23187.
(12) Data from experiments, in which colonies of a hydroid, Laomedea flexuosa, were exposed to a range of Cu2+ concentrations and a marine yeast, Rhodotorula rubra, was exposed to a range of Cd2+ concentrations, not only exhibit hormesis, but also suggest how its occurrence in growth experiments might be explained.
(13) Treatment of developing colonies of Podocoryne carnea, a hydractiniid hydroid, with dilute solutions of 2,4-dinitrophenol (DNP), an uncoupler of oxidative phosphorylation, accelerates the usual ontogenetic trajectory of polyp and stolon production.
(14) Pholasin could not be reactivated using chromophores from the hydroid Obelia geniculata (coelenterazine) and from the ostracod shrimp Vargula (formerly Cypridina) hilgendorfi.
(15) The form of the path of attracted chiton sperm is like that observed during chemotaxis of the sperm of the hydroid Tubularia and the tunicate Ciona and resembles the behavior of Ciona sperm in that there is no increase in velocity as the cells move up the gradient.
(16) In its normal ontogeny, Hydractinia symbiolongicarpus, a closely related hydractiniid hydroid, not only shows morphological heterochrony similar to that induced in P. carnea by DNP, but also shows a pattern of gastrovascular flow similar to that observed in P. carnea under treatment with DNP.
(17) Three hemolytic constituents have been isolated from the hydroid Solanderia secunda.
(18) A method has been developed to incorporate the apoprotein of the Ca2+-activated photoprotein obelin, and mRNA purified from the hydroid Obelia, into the cytoplasm of intact human neutrophils.
(19) The low-molecular weight proportion altering factor (PAF) from colonial hydroids has general animalizing effects on morphogenesis in hydroid development.
(20) It is probable that the orientation of filaments within the cell and the mesogleal extension provide an addition feature of flexibility necessary to permit feeding, growth, and rhythmic pulsation movements characteristic of these hydroids.
Polyp
Definition:
(n.) One of the feeding or nutritive zooids of a hydroid or coral.
(n.) One of the Anthozoa.
(n.) Same as Anthozoa. See Anthozoa, Madreporaria, Hydroid.
Example Sentences:
(1) The frequency of gastric malignancies in the families of the women with gastric polyps was higher than in the controls and in men, 6.2, 3.1 and 2.4 percent, respectively (p less than 0.05, and p less than 0.025).
(2) In 20 patients (18.2%), visualization revealed uterine abnormalities, mainly newly added endometrial lesions, i.e., hyperplasia, polyps, endometritis, and synechiae.
(3) In the latter groups, specimens were taken from both polyp tissue and adjacent nasal mucosa.
(4) Age, histological type, number or location of the index diminutive polyps, were not associated with proximal lesions.
(5) In this paper, 5 patients with benign tumor (3 tubular adenoma, 1 leiomyoma and 1 fibroma) and 35 pseudotumor (26 cholesterol polyps and 9 inflammatory polyps) of the gallbladder are presented.
(6) The indication to lipomas removal is based on clinical remarks and differential diagnosis with adenomatous polyps.
(7) Genetic relations of skin tags, colon polyps, and colon cancer are a matter of ongoing research.
(8) Of 14 reported cases of Peutz-Jeghers syndrome associated with intestinal carcinoma, in only two was the tumor shown to originate in the polyp.
(9) Examples include the specific pattern of hypodontia seen before the development of iris dysplasia in Rieger syndrome, and the presence of supernumerary teeth and facial osteomas preceding malignant transformation of intestinal polyps in Gardner syndrome.
(10) All patients with distal polyps detected during flexible sigmoidoscopy underwent colonoscopy.
(11) Findings included squamous epithelium with acute and chronic inflammation, foreign body granuloma and aural polyps.
(12) Nine of these 10 patients had juvenile polyposis defined by the presence of at least three juvenile polyps; and eight of the nine had a family history of juvenile polyps.
(13) Eradication of the pedunculated and narrow-based polyps in stomach was almost totally successful by injection into the base.
(14) Included in the study were 193 small polyps, 0.5 cm in diameter, diagnosed on rectoromanoscopy and removed by mechanical way from 182 patients at the Proctologic Unit of the Department of Gastroenterology.
(15) Despite the fact that this approach has several caveats, consistent results obtained in short-term studies would more readily justify the undertaking of a large-scale, long-term controlled study using colon cancer or adenomatous polyp recurrence as an endpoint.
(16) After the polyp was removed, the cells decreased appreciably in number.
(17) Neoplasia was present in 22% of DPs located less than 60 cm from the anus, 73% of proximally located small polyps, and 32% of all DPs.
(18) Non-neoplastic polyps included 32 inflammatory polyps, 32 metaplastic polyps, 27 juvenile polyps and 17 Peutz-Jeghers type polyps.
(19) Polyps were detected ultrasonographically, but one third of them were overlooked by either cholecystography or CT. Nomenclature, pathological classification and management of the lesions are discussed.
(20) Every second polyp in the same region proved to be adenoma.