(v. t.) To cross with lines in a peculiar manner in drawing and engraving. See Hatching.
(v. t.) To cross; to spot; to stain; to steep.
(v. t.) To produce, as young, from an egg or eggs by incubation, or by artificial heat; to produce young from (eggs); as, the young when hatched.
(v. t.) To contrive or plot; to form by meditation, and bring into being; to originate and produce; to concoct; as, to hatch mischief; to hatch heresy.
(v. i.) To produce young; -- said of eggs; to come forth from the egg; -- said of the young of birds, fishes, insects, etc.
(n.) The act of hatching.
(n.) Development; disclosure; discovery.
(n.) The chickens produced at once or by one incubation; a brood.
(n.) A door with an opening over it; a half door, sometimes set with spikes on the upper edge.
(n.) A frame or weir in a river, for catching fish.
(n.) A flood gate; a a sluice gate.
(n.) A bedstead.
(n.) An opening in the deck of a vessel or floor of a warehouse which serves as a passageway or hoistway; a hatchway; also; a cover or door, or one of the covers used in closing such an opening.
(n.) An opening into, or in search of, a mine.
(v. t.) To close with a hatch or hatches.
Example Sentences:
(1) % hatch X 20000) of ticks from treated cattle with that of ticks from untreated cattle.
(2) Larvae from fresh water eggs, cultured in fresh water and 'normal' laboratory cultures reached 50% infectivity in 3-5 days, losing potential infectivity in 11-15 days post-hatching.
(3) Hatching commenced in early October (after 23 wk), when air and water temperatures decreased to 20 and 15 degrees C, respectively, and continued until mid-December (32 wk) in the field.
(4) Prolactin plasma concentrations decreased rapidly at the end of incubation in ducks which successfully hatched young as well as in unsuccessful incubators.
(5) Although the chicks were behaviorally and electrophysiologically blind at the time of hatching, their retinas appeared morphologically comparable to normal chicks at this stage.
(6) Attach self-adhesive foam strips, or metal strips with brushes or wipers attached, to window, door and loft-hatch frames (if you have sash windows, it's better to ask a professional to do it).
(7) Statistical analysis has shown the following: a) the growth inhibition, which is especially distinct in autumn-spring generation, takes place in the Ist instar larvae 1.76-2.20 mm long inhabiting the walls of the nasal cavity and concha (their average body length at hatching is 1.08 plus or minus 0.004 mm); the inhibition is associated with interpopulation relations and apparently does not depend on the date of its beginning and can last from 6 to 7 months; c) after the growth resumption the development continues uninterruptedly up to the moulting; the inhibition is also possible at the beginning of the 2nd instar and then the development proceeds without any intervals up to the complete maturation of larvae.
(8) In house flies, Musca domestica L., eggs fertilized with sperm that have chromosome deficiencies and duplications do not hatch, but develop to a stage where a fully differentiated, prehatch larva is formed.
(9) Results showed that embryos stimulated by clicks began breathing about nine hours in advance of unstimulated controls and hatched about 23 hours in advance.
(10) In hatched larvae around developmental stage 46, strong expression of 2NI-36 was observed in several tissues including the vascular endothelium, the pigmented epithelium and the inner layer of skin epidermis.
(11) The presence of glutamic acid decarboxylase (GAD) and gamma-aminobutyric acid (GABA) was investigated in neuroretina sections from hatching quail embryos by immunocytochemistry.
(12) Tibial breaking strength and tibial percentage ash of the progeny at hatching was markedly improved in proportion to maternal phosphorus and food intake.
(13) In contrast, the HNK-1 CSPG was present as early as embryonic day 4 and remained constant through hatching.
(14) Titers of the poults were monitored for 7 weeks, and poults were challenged by exposure to infected poults at 1, 7, 14, and 21 days post-hatch.
(15) Allomorphic relationships in chickens selected for high or low juvenile body weight and their reciprocal crosses were examined from hatch to 56 days of age (doa).
(16) Hatching readily occurred in deionized water, but the emerged miracidia did not swim longer than 5 to 10 min unless Na+ was added.
(17) The present study investigated the ontogeny of 3H-uridine incorporation into RNA as a measure for RNA synthesis in preimplantation porcine embryos from the two-cell stage up to the stage of the newly hatched blastocyst.
(18) Blastocyst formation, hatching of blastocysts, and the number of cells per embryo were affected by this increase in radiation risk.
(19) The embryogenesis of the proctodeal gland and development of the connective tissue of the associated lamina propria in the dorsal wall of the proctodeum of Common Coturnix (Coturnix c. japonica) were studied on embryos collected at 12-hour intervals from day 7 of incubation through hatching.
(20) Tooth germs are formed partly by cells of the stomodeal collar and partly by mesenchymal cells and calcification takes place before hatching.
Viviparous
Definition:
(a.) Producing young in a living state, as most mammals, or as those plants the offspring of which are produced alive, either by bulbs instead of seeds, or by the seeds themselves germinating on the plant, instead of falling, as they usually do; -- opposed to oviparous.
Example Sentences:
(1) This series of transitions at the embryonic age (up to the time of egg viviparity) is connected with ecological peculiarities of different species.
(2) The uterine epithelium of the viviparous Salamandra atra and the ovoviviparous Salamandra salamandra was studied in non pregnant and ovulating females and in females during different stages of pregnancy.
(3) Based on in vivo and in vitro modulation of immune responses by placental products, it is concluded that: 1) allograft enhancement and high production of IgG1 antibodies are not linked to the same glycoprotein, 2) the immunomodulators in relation to the protection of viviparity appear to be located at the exclusion limits of Sephacryl S-200 (i.e.
(4) Splenic cells from pregnant and non-pregnant viviparous lizards (Chalcides ocellatus) were stimulated in vitro with the mitogens, concanavalin A (Con A), phytohemagglutinin (PHA) and Escherichia coli lipopolysaccharide (LPS).
(5) It therefore appears that in the genus Wuchereria, as in the other viviparous filarioids, the phenomenon of speciation is evident first of all in the morphology of the microfilaria, the stage most susceptible to selection pressures.
(6) A plasma steroid binding protein (SHBP) with medium-high affinity and limited capacity was characterized in the viviparous water snake, Nerodia.
(7) We investigated the regulation of Re by progesterone in a mammalian model (proestrous hamster uterus) and an avian model (DES-primed chick oviduct), under the same assay conditions, in an effort to compare progesterone action in viviparous and oviparous species.
(8) This character opposes these species to the other viviparous Filariae and stresses the originality of the Oswaldofilariinar.
(9) The neurosecretory A cells of the pars intercerebralis of the viviparous fly Glossina fuscipes fuscipes present important changes during the genital cycle.
(10) Viviparity, on the other hand, allows the growth of a much larger fetus, offers great protection and is highly efficient.
(11) Steroid concentrations in plasma and follicular tissues (theca plus granulosa layers) were determined by radioimmunoassay in the aplacental viviparous ray, Torpedo marmorata, during various stages of the reproductive cycle.
(12) Etiology was determined to be a viviparous pinworm-like nematode of the genus Proatractis (Family Atractidae).
(13) In this paper is also presented a discussion about the different modes of reproduction oviparity and viviparity (placental and non-placental) and their variations according to families, genus and species.
(14) The ability of arachidonic acid (AA) and prostaglandins of the two series to induce parturition in vivo and oviducal contraction in vitro was studied in the viviparous lizard Sceloporus jarrovi.
(15) In the viviparous guppy, fertilization and gestation are intrafollicular.
(16) Here we described the emergence of T-cell immune capability in the viviparous lizard (Chalcides ocellatus) throughout embryonic development (stages 36-41 of Zada and El Deeb, 1984) and in newborns.
(17) Uterine contractility was investigated in the viviparous lizard Tiliqua rugosa.
(18) On the basis of these observations we speculate that viviparity might occur in vivo with consequent autoinfections; if so, this might explain some puzzling clinical and epidemiological features of haemonchosis, as well as the incomplete efficacy of current control measures.
(19) In a previous study we characterized an oviduct progesterone receptor in the viviparous snake, Nerodia, and in this study we describe changes in receptor during the reproductive cycle.
(20) The Viviparous-1 (Vp1) gene is required for expression of the C1 regulatory gene of the anthocyanin pathway in the developing maize seed.