(a.) ing or continuing through the year; as, perennial fountains.
(a.) Continuing without cessation or intermission; perpetual; unceasing; never failing.
(a.) Continuing more than two years; as, a perennial steam, or root, or plant.
(n.) A perennial plant; a plant which lives or continues more than two years, whether it retains its leaves in winter or not.
Example Sentences:
(1) Eighty micrograms of the topically active parasympatholytic drug ipratropium were applied intranasally four times daily in 20 adults with perennial rhinitis and severe watery rhinorrhoea in a double-blind controlled cross-over trial.
(2) consider the X-ray findings verified in 3 groups of subjects: with Hayfiber, with perennial rhinitis and the last one being a control group.
(3) Eleven children with severe perennial asthma and a poor clinical response to disodium cromoglycate were studied in a 4-month, double blind trial involving 1 month's treatment with placebo, disodium cromoglycate, betamethasone 17 valerate, and both drugs combined according to a predetermined random design.
(4) Cruden Farm, Victoria The 54-hectare Murdoch family estate in Langwarrin south of Melbourne, Australia, features magnificent gardens complete with ponds, lemon-scented gum trees and two walled gardens and perennial borders.
(5) In this study, the authors evaluate the inhalant substances of the house, emphasizing the importance of Dermatophagoides pteronyssinus to cause perennial allergic rhinitis.
(6) A panel of human CD4+ T cell clones specific for the house dust mite was isolated from an atopic individual with perennial rhinitis.
(7) Patients who had both perennial symptoms and summer seasonal exacerbations had a higher incidence of a positive family history of atopy and developed symptoms earlier in life than those patients who had summer seasonal or perennial symptoms only.
(8) Patients with perennial rhinitis had a more vigorous response than the controls.
(9) The immediate changes in regional ventilation and pulmonary blood flow were studied in seventeen adults with perennial asthma and in two control persons, who were challenged by histamine inhalation (histamine induced asthma (HIA)).
(10) Twenty-eight patients with allergic perennial rhinitis treated for 2 years with parenteral semidepot immunotherapy were divided into two groups of 14 patients: group A receiving conventional aerosol nebulization (TNE), and group B, which received TNAI using a type F aerosol electrocompressor.
(11) We have something to say and something to offer on perennial political dilemmas.
(12) Specificity was 87% for pollens and 90% for perennial antigens.
(13) Overnight, Russia has moved from perennial rival to trusted friend, while Nato’s future is in peril.
(14) More males than females had summer seasonal symptoms whereas more females than males had perennial symptoms.
(15) The old-fashioned dining room, unpretentious atmosphere, and the three-course menus under €30 make it a perennial favourite.
(16) But Howitt says that while it is a problem that so much farmland has shifted from more adjustable crops to perennials like almonds, he has a simpler solution: better management of groundwater.
(17) They are the identification of factors causing severe disease as opposed to heavy infection; the effects of seasonal as opposed to perennial transmission; and the importance of transplacental transmission of microfilariae or soluble antigens.
(18) Together with his late wife Janet, he wrote 37 titles including perennial favourites The Jolly Postman and Burglar Bill, and by himself he is the author of many more, including The Pencil, and Woof!
(19) It seems that perennial rhinitis probably arises from abundance of domestic antigens more than for the other allergic manifestations, as the nose is the first filter to receive foreign particles.
(20) However, PAC differed from SAC in several respects: a history of exacerbation on exposure to house dust (PAC 42 per cent; SAC none) and an association with perennial rhinitis (PAC 75 per cent; SAC 12 per cent) were more common in PAC.
Shrub
Definition:
(n.) A liquor composed of vegetable acid, especially lemon juice, and sugar, with spirit to preserve it.
(n.) A woody plant of less size than a tree, and usually with several stems from the same root.
(v. t.) To lop; to prune.
Example Sentences:
(1) Close to the smelters tree species accumulated more foliar fluoride than shrub species, which in turn accumulated more foliar fluoride than herb species.
(2) Across this relatively peaceful corner of the Horn of Africa, where black-headed sheep scamper among the thorn bushes, dainty gerenuk balance on their hind legs to nibble from hardy shrubs, and skinny camels wearing rough-hewn bells lumber over rocky slopes, people long accustomed to a harsh environment find they cannot cope after years of below-average rainfall.
(3) I like the challenges that come with those that thrive in such adverse conditions, and there are plenty: woodland species that make the most of what little sunlight hits the leaf litter; ferns that like dripping cave mouths and cliff faces cast in gloom; and small shrubs that eke out a living under bigger things, such as butcher’s broom ( Ruscus aculeatus ) and fragrant sweet box ( sarcoccoca ).
(4) This study investigated the effect of prolonged ingestion of Leucaena leucocephala, a leguminous shrub with a potential as a source of animal feed in Southern Taiwan, by heifers on serum thyroid hormone levels.
(5) The group, which entered through a fence around the Lincolnshire at 8am and included a Catholic priest and an Anglican priest, managed to set up banners and plant a "peace garden" consisting of a number of shrubs before they were arrested.
(6) It is concluded that these goats have a feeding habit similar to that of cattle rather than resting their forelimbs on the shrubs while nibbling the leaves as recorded in Asian goats.
(7) Glia shrubs in the cerebellar cortex appeared to be formed along the apical dendrite of Purkinje cells.
(8) The ACMD report described it as a herbal product made up of the leaves and shoots of the shrub Catha edulis, which releases a mild stimulant after being chewed for about an hour and three quarters.
(9) About half of the species eaten came from the dense herb and shrub layers.
(10) But over in the hospital, beyond the fences and shrubs, there is movement.
(11) According to the Garden Bridge trust, the new crossing would feature not only shrubs, trees, plants, benches and even "intimate walkways", but would also serve as a direct link between the South Bank and Covent Garden and Soho.
(12) Away from the city, green gives way to bush, then desert pockmarked with shrubs.
(13) The most favourable biotope for the circulation of Ixodes ticks, which are the principal vectors of the virus, is provided by the margins of these natural forests and their supplementary shrub communities.
(14) The following risk factors were assessed: black fly bites, presence of rodents at home, exposure to cereal dust, exposure to fumes or dust released by tree and shrub removal, and exposure to insecticides.
(15) I'm in St Ives in Cornwall, strolling around the Barbara Hepworth Sculpture Garden, a thickly growing, almost tropical space where tree, plant, shrub and sculpture live in perfect harmony.
(16) There is a widespread practice among people living in Eastern Africa and Southern Arabia of chewing the leaves of the Khat shrub so as to produce pharmacological effects that are practically indistinguishable from those produced by amphetamine (AMPH).
(17) Herbicides are a heterogeneous class of chemicals used in agriculture, forestry, and urban settings to kill weeds, shrubs, and broad-leaved trees.
(18) Shrubs and trees, especially of the Rosaceae (primarily species of Prunus), were particularly important as nectar sources and bloomed concurrently with the appearance of nulliparous females.
(19) Cathinone is an active ingredient in the leaves of the Khat shrub.
(20) Therefore, during the spring and fall, activities that take place in high-shrub areas or in the woods (e.g., landscaping, trail or brush clearing) involve a high risk of exposure to adult ticks infected with Lyme disease.