() A variety of crystallized quartz, of a purple or bluish violet color, of different shades. It is much used as a jeweler's stone.
() A purple color in a nobleman's escutcheon, or coat of arms.
Example Sentences:
(1) This alcohol screening test was developed for the 10 country AMETHYST project.
(2) Rose de France This pale amethyst is the new queen of gemstones.
(3) A substance with amethyst fluorescence was detected in the medium of adenosine-inhibited cultures of S. cerevisiae.
(4) The matte (mt) gene is linked to the previously described mandarin red (ma) gene, and the white puparium (wp) gene is linked to the white eye (we) and amethyst (am) loci.
(5) The proposed amethystic imidazobenzodiazepine Ro 15-4513 and ethanol (ETOH) were examined in rats using two operant procedures, differential reinforcement of low rates of responding (DRL), and drug discrimination learning (DDL).
(6) Promising drugs are discussed under six headings: agents to treat alcohol withdrawal; anticraving agents; agents that make drinking an aversive experience; agents to alleviate concomitant psychiatric problems; agents to treat concurrent drug abuse; and amethystic ("sobering-up") agents.
(7) They had been employed as stone sculptors in lapidaries where they processed tiger's-eye, rose quartz, amethyst, quartz crystal, and a variety of other locally occurring semiprecious stones.
Heliotrope
Definition:
(n.) An instrument or machine for showing when the sun arrived at the tropics and equinoctial line.
(n.) A plant of the genus Heliotropium; -- called also turnsole and girasole. H. Peruvianum is the commonly cultivated species with fragrant flowers.
(n.) An instrument for making signals to an observer at a distance, by means of the sun's rays thrown from a mirror.
(n.) See Bloodstone (a).
Example Sentences:
(1) On admission, there were diffuse edema of upper eyelids with heliotrope rash.
(2) By the end of the second year 12% (14 of 120) of the sheep had died; after 4 years the loss attributable to heliotrope was between 18% and 35%.
(3) Juvenile dermatomyositis is a chronic disease of childhood that is manifested by severe symmetrical progressive muscle weakness, a characteristic heliotrope colored skin rash which involves the face, and by elevated serum enzymes related to muscle damage.
(4) Feeding heliotrope alone induced the histological changes of pyrrolizidine alkaloid toxicity in the liver, but this was not associated with an excessive accumulation of copper or the development of clinical illness.
(5) The relatively low mortality from primary heliotrope poisoning and the low concentration of copper in the liver of sheep grazing the plant are discussed in relation to the contrasting situation that prevails in the Riverina area of New South Wales.
(6) A 57-year-old man developed polyarthralgia, muscle weakness, heliotrope rash and Gottron's sign.
(7) The 10 sheep fed heliotrope alone did not show signs of clinical illness but one died and was found to have severe liver damage.
(8) The effects of interrupting the enterohepatic circulation (EHC) of bile salts for seven hours and of feeding copper and heliotrope alone and combined for 13 weeks, on bile flow and excretion of copper, zinc, iron and alpha-mannosidase were studied in sheep.
(9) Two middle-aged women showed typical erythematous heliotrope eruption and Gottron's sign without any symptom of myositis.
(10) This paper contributes one case of paraneoplastic dermatomyositis associated to infiltrant vesical tumour, presenting erythematous damage in face, nape of the neck and upper thorax, as well as periorbital heliotrope erythema and fingernails base and sides telangiectasia, all of which are typical signs of dermatomyositis.
(11) In a field experiment in the Mallee district of Victoria, Merlno xBorder Leicester ewes and wethers grazed Heliotropium europaeum (heliotrope) over periods of 3 to 4 months in 4 successive years.
(12) Biliary concentration of copper correlated with alpha-mannosidase's activity in control sheep and those given copper or heliotrope, supporting the hypothesis that lysosomes are involved in biliary secretion of copper in sheep.
(13) Wodehouse's correspondence is often clad in the epistolary equivalent of Bertie's heliotrope pyjamas, carefully buttoned up to disguise true feeling.
(14) The importance of local environmental factors in the management of heliotrope grazing by sheep is emphasised, particularly in relation to the number of seasons in which the plant may be a major component of the diet.
(15) The concentrations of copper in the livers of control and heliotrope-treated sheep, were comparable.
(16) Physical examination showed Gottron's papules on her fingers and a faint heliotrope rash.
(17) In one experiment copper and heliotrope were given concurrently, in a second experiment heliotrope was fed for 12 weeks and copper administration commenced 8 weeks later.
(18) Copper output was lower when heliotrope was fed alone.