(a.) Pertaining to, or situated under, the northern constellation called the Bear; northern; frigid; as, the arctic pole, circle, region, ocean; an arctic expedition, night, temperature.
(n.) The arctic circle.
(n.) A warm waterproof overshoe.
Example Sentences:
(1) Undaunted by the sickening swell of the ocean and wrapped up against the chilly wind, Straneo, of Woods Hole Oceanographic Institution, one of the world's leading oceanographic research centres, continues to take measurements from the waters as the long Arctic dusk falls.
(2) Cameron famously broke with the past, and highlighted his green credentials, by posing with huskies on a visit to Svalbard in the Norwegian Arctic in 2006.
(3) The compromised ice sheet tilts and he sinks into the Arctic Sea on the back of his faltering white Icelandic pony.
(4) Called arctic packs, the insulating material consists of crude oil or diesel fuel.
(5) The loss of summer sea ice has led to unusual warming of the Arctic atmosphere, that in turn impacts weather patterns in the northern hemisphere , that can result in persistent extreme weather such as droughts, heatwaves and flooding," she said.
(6) ScalesOfJustice 18 September 2013 12:47pm If we go back to 1998, it appears as though global temperatures have stopped increasing, however Arctic temperatures have increased quite strongly - hence the strong decline in sea-ice since 1998.
(7) It should see the Arctic 30 home in time for Christmas.
(8) The other rowers in the Arctic crew were Billy Gammon, 37, from Cornwall; Rob Sleep, 38, and British army officer Captain David Mans, 28, both from Hampshire.
(9) Summer sea ice The most striking change in the Arctic in recent years has been the reduction in summer sea ice in 2007 .
(10) In addition, another 25 million acres of state and federal lands in the U.S. Arctic — onshore and off — are open to oil and gas leasing; of that,13.5 million acres have already been leased.
(11) Updated at 9.00pm GMT 8.52pm GMT How happy are Arctic Monkeys right now?
(12) "But if it keeps their plight and the plight of the Arctic in the press, I think she would be happy to do it."
(13) Photograph: NSIDC This contrasts sharply with the continuing decline of sea ice in the Arctic, which again recorded below average levels of ice during the summer.
(14) A British oil firm will tomorrow announce that it has struck oil off Greenland, a find that could trigger a rush to exploit oil reserves in the pristine waters of the Arctic.
(15) Using automatic and observer-operated equipment for monitoring thermal data, observations have been made during Royal Navy Wessex 5 helicopter operations in a sub-Arctic climate.
(16) The investigators said the Greenpeace ship the Arctic Sunrise had violated the 500-metre security zone around the platform and that it was carrying equipment whose purpose was still unclear.
(17) "The [Inupiat] people who have thrived off the Arctic waters for thousands of years and those who treasure the Arctic's unique wildlife will continue to demand that the Obama administration not allow Shell to move forward."
(18) The US Geological Survey estimated the waters in the Arctic contain about 90bn barrels of recoverable oil.
(19) 3.20pm BST Reaction from drilling industry Statoil spokesperson Bård Glad Pedersen says the Norwegian oil and gas company is exploring the Arctic through a step-by-step approach that builds on decades of experience in cold water regions.
(20) It’s time for governments, business and people the world over to respond and the most obvious place to start is by calling a halt to Shell’s reckless search for Arctic oil.” NSIDC is yet to provide a full analysis of this year’s melt, noting that there is a chance that changing wind patterns or low season melt could see the ice recede further.
Lemming
Definition:
(n.) Any one of several species of small arctic rodents of the genera Myodes and Cuniculus, resembling the meadow mice in form. They are found in both hemispheres.
Example Sentences:
(1) The structure and ultrastructure of the following regions of the hypothalamo-hypophysial neurosecretory system (HHNS) in the population cycle of lemming were studied: supraoptic (SON), paraventricular (PVN) and arcuate nuclei (AN), the median eminence (ME) and posterior pituitary (PP).
(2) These results suggest that LEM are a reliable individual difference measure and are sensitive to task differences.
(3) Thus, the effects of LEM in stimulating hepatic amino acid transport appear to be direct, without mediation by other hormones, and to be independent of cAMP.
(4) In two patients with the Lambert-Eaton myasthenic syndrome (LEMS) and small-cell lung carcinoma (SLLC), therapy for LEMS was effective when combined with cancer therapy.
(5) This syndrome is likely to be autosomal recessive and resembles Smith-Lemli-Opitz (SLO) syndrome.
(6) Characteristic reduction of quantal content elicited at 1 Hz and facilitation at 20 Hz was observed in mice treated with LEMS plasma compared to those treated with control plasma.
(7) The Smith-Lemli-Opitz syndrome is characterized by mental retardation, hypotonia, facial dysmorphism and abnormalities of the limbs, genitalia and kidneys.
(8) To test this hypothesis, mouse diaphragms were exposed to control and LEMS IgG and IgG fragments in organ culture for 24 hours and then studied by quantitative freeze-fracture electron microscopy.
(9) LEMS IgG also acts at motor nerve terminal Ca2+ channels leading to muscle weakness.
(10) The tested substances included two sulfated polysaccharides (lentinan sulfate and dextran sulfate) and a nonsulfated polysaccharide PSK, E-P-LEM, glycyrrhizin sulfate, and nucleoside analogues (AZT and DHT).
(11) Replication patterns of the X chromosomes were studied in X*XY wood lemmings with male and female phenotypes.
(12) Measurements of leukocytic endogenous mediator (LEM) activity, i.e., lowering of plasma iron and zinc and increases in blood neutrophils, were made on the same supernatant media.
(13) Plasma insulin and glucagon responses to crude LEM may explain increases in hepatic cAMP, uptake of AA, and glycogenolysis as well as hypoglycemia.
(14) LEMS IgG was equally effective in C5-deficient mice, indicating that late complement components are not required.
(15) Since some factor enhancing antibody response was detected in the culture supernatant of LEM-treated macrophages, this was fractionated by gel filtration, which revealed a substance with a molecular weight of about 15,000 daltons.
(16) The wood lemming, Myopus schisticolor, the collared lemming, Dirostonyx torquatus, and perhaps also one or two species of the genus Akodon have XX and XY females and XY males.
(17) Inhibition of the infectivity and cytopathic effect of human immunodeficiency virus type 1 (HIV-1) by the immunoactive fractions obtained from LEM, which is an extract of the culture medium of Lentinus edodes mycelia, is reported.
(18) This study describes the sequential formation of lesions associated with the endogenous development of Sarcocystis rauschorum (Apicomplexa: Sarcocystidae) in varying lemmings, Dicrostonyx richardsoni.
(19) Simultaneously registered EEG (O1-Cz and O2-Cz) and lateral eye movements (LEM) were analyzed with reference to different stimuli.
(20) SD-exposed lemmings showed 19.2% greater growth than those in LD, resulting primarily from a 29.2 and 15.0% increase in lean and ash components, respectively.