(n.) The fabled food of the gods (as nectar was their drink), which conferred immortality upon those who partook of it.
(n.) An unguent of the gods.
(n.) A perfumed unguent, salve, or draught; something very pleasing to the taste or smell.
(n.) Formerly, a kind of fragrant plant; now (Bot.), a genus of plants, including some coarse and worthless weeds, called ragweed, hogweed, etc.
Example Sentences:
(1) All patients were found to be sensitive to Ambrosia.
(2) The acute and subchronic toxicity of the molluscicidal plant, Ambrosia maritima L., has been tested on rats.
(3) A new species of the genus Zygozyma, Z. smithiae, was recovered from frass of the ambrosia beetle, Crossotarsus externedentatus in Northern Natal.
(4) Four hundred children were skin tested with following allergens: Dermatophagoides pteronyssinus, moulds, animal dander (mixture of dog, cat, sheep and horse dander), tree pollens, weed pollen (Ambrosia artemisifolia), and six grass pollens, as well as three nutritive allergens in children less than three years of age.
(5) Comparison of pollen capture with meteorologic data demonstrated that photoperiodic responses probably account for the initiation and termination of Ambrosia flowering, and to some extent that of Parthenium, and not sharply lowered temperatures or frost for ending pollen release.
(6) Skin tests with Ambrosia allergen extracts showed a positive rate of 67.7% in 624 cases of pollinosis.
(7) The total allergenicity of a pollen extract Ambrosia elatior was measured by quantitative prick test applied to the skin of seven highly sensitive patients and by standardized method of RAST-inhibition.
(8) The animals were placed in a cell in which an allergen-water-dialyzed extract of ambrosia pollen was dispersed by means of coaxial pulveriser.
(9) Anthemis cotula (dog fennel) and Xanthium strumarium (cocklebur) gave the most frequent positive results, demonstrating a change of frequency in sensitivity compared to the 1950s, when Ambrosia artemisiifolia (ragweed) was recognized as the most frequently sensitizing weed.
(10) This study analyzes Amb a I, a family of related proteins formerly known as Ag E, that comprise the major allergens of short ragweed (Ambrosia artemisiifolia).
(11) Since both Parthenium and Ambrosia are significant allergenic plants, correlations between airborne pollen of Parthenium and allergic potential suggest that a prolonged pollination season and perhaps increased allergenicity of unique Parthenium pollen proteins allow Parthenium to be a major allergen despite significantly less ambient pollen.
(12) Capture of native Ambrosia species and P. hysterophorus peaked in September and October in 1987 and 1988, but Parthenium pollen was also found year round with a smaller secondary peak during May, 1988 and 1989.
(13) The cloning of the AmbtV cDNA is important, since the 4.4-kDa AmbtV, one of the allergens in giant ragweed (Ambrosia trifida) pollen, serves as a simple model system to study the basic structural requirements for immune recognition of foreign protein allergens.
(14) Mean radionuclide levels in cattle tissue and environmental samples from Ambrosia Lake were higher in almost every comparison than those found in respective controls.
(15) Seeds of the short ragweed (Ambrosia artemisiifolia) were collected from 38 different sites in Champaign County, Ill. Plants from these seeds were grown under similar conditions, and antigen E (AgE) was determined on pollen samples harvested from individual plants.
(16) Mowing or hand weeding cannot eradicate Ambrosia artemisiifolia but if they are consistently used, they could reduce its population level over several years by decreasing seed production.
(17) These spectra were very close to those of the polysaccharides from the C. clavata and C. ambrosia groups of Ceratocystis species.
(18) Previous studies have associated skin test sensitivity and specific IgE response to Ambrosia artemisiifolia V (Amb a V) with HLA-DR2, and to Ambrosia trifida V (Amb t V) with HLA-DRw52 haplotypes in atopic individuals.
(19) Ambrosia Lake, New Mexico, has been the site of extensive U mining for 30 y and contains several underground U mines, a processing mill, and two large U tailings piles.
(20) Positive patch test reactions were 2+ for dandelion (Taraxacum officinale), false ragweed (Ambrosia acanthicarpa), giant ragweed (Ambrosia trifida), short ragweed (Ambrosia artemisifolia), sagebrush (Artemisia tridentata), wild feverfew (Parthenium hysterophorus), yarrow (Achillea millifolium), and tansy (Tanacetum vulgare) and 1+ for Dahlia species and English ivy (Hedera helix).
Nectar
Definition:
(n.) The drink of the gods (as ambrosia was their food); hence, any delicious or inspiring beverage.
(n.) A sweetish secretion of blossoms from which bees make honey.
Example Sentences:
(1) The unusual behavior characterized as "bubbling" was interpreted as either thermoregulation or a nectar concentration.
(2) Gonotrophic-age structure of a population of Aedes provocans (Walker) and nectar sources used by adults were studied for 2 yr at a field site near Belleville, Ontario, Canada.
(3) The EFSA report found the risk to honeybees from drifting pesticide dust was high when fipronil was used as a seed treatment for maize, but did not have the data to assess the risk from its use on sunflowers, or the risk via pollen and nectar, or the risk to other bees and pollinators.
(4) While some worker bees remain at home, others take flight in search of nectar, pollen and other hive essentials.
(5) As one of the gods fled with a pitcher of the nectar across the skies, it spilled on four Indian towns: Allahabad, Nasik, Ujjain and Haridwar.
(6) Twenty-eight exposures were the result of sucking nectar from the flower; the remainder involved ingestion of leaves or flowers.
(7) Salads might feature watermelon, pickled rinds and cashews, while cocktails are little belters: the Del Bac Date ($12), made with Tucson’s malt whisky and local fruit, is purest nectar.
(8) Apparently, these mosquitoes take little or no nectar during the day, and feed soon after the onset of darkness.
(9) The roles require drastically different behaviours, with nurses feeding the larvae and performing royal grooming duties, and foragers navigating great distances and performing complex dance routines to point others in the direction of rich sources of nectar.
(10) This is the first time that ultraviolet absorption in a nectar guide has been interpreted in chemical terms.
(11) alpha-glucosidase activity is elevated in the posterior midgut after feeding in response to the blood meal, whereas activity in the anterior midgut is consistent with a nectar-processing role for this midgut region.
(12) vexans had later peak nectar-feeding times than females.
(13) Levels of DA in the brain of nectar and pollen forager bees, presumed to be among the oldest adults sampled, were found to be significantly higher than in nurses, undertakers or food storers.
(14) Grayanotoxins are known to occur in the honey produced from the nectar of Rhododendron ponticum growing on the mountains of the eastern Black Sea region of Turkey and also in Japan, Nepal, Brazil, and some parts of North America and Europe.
(15) Oilseed rape is likely to be particularly damaging , according to the researchers, because the active compounds of the neonicotinoid pesticides are not just applied to the surface but expressed in the plant’s tissues, meaning that bees can ingest the chemicals in the nectar and pollen of affected crops.
(16) Honeybees, too, employ complex navigational skills to find their way to and from distant sources of nectar and pollen.
(17) During our study, it was observed to feed on only five species of plant and mainly on the nectar-producing parts (flowers and nectaries) of four of these species.
(18) The presence of fructose, as detected by the cold Anthrone test, indicated that both parous and nulliparous flies routinely imbibe nectars as part of their foraging behavior.
(19) A spokesman for Syngenta, which manufactures thiamethoxam, said: “Crop-measured pollen and nectar residues from thiamethoxam seed-treated oilseed rape is typically less than 3ppb.
(20) The distribution and relative frequency of occurrence of gastrointestinal endocrine cells exhibiting immunoreactivity to eleven peptides and one amine were examined immunohistochemically in the gastrointestinal mucosa of the adult honey possum which feeds almost exclusively on nectar and pollen.