(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.
Ratchet
Definition:
(n.) A pawl, click, or detent, for holding or propelling a ratchet wheel, or ratch, etc.
(n.) A mechanism composed of a ratchet wheel, or ratch, and pawl. See Ratchet wheel, below, and 2d Ratch.
Example Sentences:
(1) But similar accusations have been levelled by Anders Fogh Rasmussen , the secretary general of Nato, and by pro-shale officials in Romania and Lithuania , as cold war-style tensions have ratcheted.
(2) President Obama is to meet today with members of the National Governors Association – a prime opportunity for the president to ratchet up the pressure on Republicans to make a deal.
(3) Muller's ratchet is an important concept in population genetics.
(4) The prolonged estrogen requirement during the lag period is not truly discontinuous as previously suggested but rather can be satisfied by discontinuous pulses of estrogen in a ratchet-like fashion because of the stability of their effects.
(5) "There has been a ratcheting down of deterrence gestures by the US, and that has helped cool the situation a little," said John Delury, a North Korea analyst at Yonsei University in Seoul.
(6) Muller's ratchet could have significant implications for variability of disease severity during virus outbreaks, since genetic bottlenecks must often occur during respiratory droplet transmissions and during spread of low-yield RNA viruses from one body site to another (as with human immunodeficiency virus).
(7) North Korea again ratcheted up the tension in its nuclear standoff with the world by declaring yesterday that it would "weaponise" all of its plutonium and threatening its opponents with military action.
(8) The effect of this ratcheting motion is to subtract from the DNA molecule's forward movement, at each step, an amount which is proportional to its length.
(9) This sets up a ratchet effect each year and means that pay almost never goes down.
(10) Croatia has bused hundreds of migrants to its border with Hungary, ratcheting up tensions in Europe’s refugee crisis as police fired tear gas to drive back several hundred people trying to enter Slovenia .
(11) Especially because Trump suggested that he never settled cases and derided others who did settle them.” The looming move to the White House ratcheted up pressure, Tobias said.
(12) Once these kick in in earnest, they will sweep many species out of their habitability zones, and ratchet up the extinction rate still further.
(13) Speaking soon afterwards, Tony Blair said it was time to "ratchet up the international and diplomatic pressure" on Iran and demonstrate Tehran's "total isolation" on the issue.
(14) It would drive precious talent abroad and would be used by those in other banks to ratchet up their own salaries.
(15) Their voices will act like a ratchet, driving up ambition on climate.
(16) The report warned that the five-year program of cuts imposed by the Abbott government started gently but would “ratchet sharply upwards” in coming years.
(17) Ratcheting up the pressure ahead of tomorrow's Summit in Brussels, Hollande also said he would fight German attempts to create a federalised eurozone.
(18) The tension ratcheted up when the team decamped to Paris before the show, especially when American Vogue editor Anna Wintour swung by to cast her eye over the work.
(19) The Israeli government is reportedly fearful that any guidelines agreed in Paris would be turned into another UN resolution before Trump’s inauguration, and it has ratcheted up its rhetoric, presenting itself as the victim of an international conspiracy.
(20) On Tuesday, president Bashar al-Assad ratcheted up his own language by describing the crisis as "a real war" and pledged to do everything necessary to prevail.