(a.) Sour, sharp, or biting to the taste; tart; having the taste of vinegar: as, acid fruits or liquors. Also fig.: Sour-tempered.
(a.) Of or pertaining to an acid; as, acid reaction.
(n.) A sour substance.
(n.) One of a class of compounds, generally but not always distinguished by their sour taste, solubility in water, and reddening of vegetable blue or violet colors. They are also characterized by the power of destroying the distinctive properties of alkalies or bases, combining with them to form salts, at the same time losing their own peculiar properties. They all contain hydrogen, united with a more negative element or radical, either alone, or more generally with oxygen, and take their names from this negative element or radical. Those which contain no oxygen are sometimes called hydracids in distinction from the others which are called oxygen acids or oxacids.
Example Sentences:
(1) The amino acid sequence deduced from the nucleotide sequence contained both amino- and carboxyl-terminal sequences.
(2) F(420) is photolabile aerobically in neutral and basic solutions, whereas the acid-stable chromophore is not photolabile under these conditions.
(3) The high amino acid levels in the cells suggest that these cells act as inter-organ transporters and reservoirs of amino acids, they have a different role in their handling and metabolism from those of mammals.
(4) If ascorbic acid was omitted from the culture medium, the extensive new connective tissue matrix was not produced.
(5) The interaction of the antibody with both the bacterial and the tissue derived polysialic acids suggests that the conformational epitope critical for the interaction is formed by both classes of compounds.
(6) Arachidic acid was without effect, while linoleic acid and linolenic acid were (on a concentration basis) at least 5-times less active than arachidonic acid.
(7) An unsaturated fatty acid auxotroph of Escherichia coli was grown with a series of cis-octadecenoate isomers in which the location of the double bond varied from positions 3 to 17.
(8) The ability of azelastine to influence antigen-induced contractile responses (Schultz-Dale phenomenon) in isolated tracheal segments of the guinea-pig was investigated and compared with selected antiallergic drugs and inhibitors of arachidonic acid metabolism.
(9) After 4 to 6 hours of recirculation, accumulation of vasoactive amine, 5-hydroxytryptamine, its major metabolite, 5-hydroxyindole acetic acid, and its precursor amino acid, tryptophan were detected.
(10) Spectrophotometric determination of the sulfhydryl content in the animal tissue before (control) and after using 6,6'-Dithiodinicotinic acid is applied.
(11) This death is also dependent on the presence of chloride and is prevented with the non-selective EAA antagonist, kynurenic acid, but is not prevented by QA.
(12) However, four of ten young adult outer arm (relatively sun-exposed) and one of ten young adult inner arm (relatively sun-protected) fibroblasts lines increased their saturation density in response to retinoic acid.
(13) Microionophoretically applied excitatory amino acids induced firing of extracellularly recorded single units in a tissue slice preparation of the mouse cochlear nucleus, and the similarly applied antagonist 2-amino-5-phosphonovalerate (2APV) was demonstrated to be a selective N-methyl-D-aspartate (NMDA) receptor antagonist.
(14) The LD50 of the following metal-binding chelating drugs, EDTA, diethylenetriaminepentaacetic acid (DTPA), hydroxyethylenediaminetriacetic acid (HEDTA), cyclohexanediaminotetraacetic acid (CDTA) and triethylenetetraminehexaacetic acid (TTHA) was evaluated in terms of mortality in rats after intraperitoneal administration and was found to be in the order: CDTA greater than EDTA greater than DTPA greater than TTHA greater than HEDTA.
(15) Estimations of the degree of incorporation of 14C from the radioactive labeled carbohydrate into the glycerol and fatty acid moieties were carried out.
(16) The second amino acid residue influences not only the rate of reaction but also the extent of formation of the product of the Amadori rearrangement, the ketoamine.
(17) Leumorphin is a 29-amino-acid peptide derived from preproenkephalin B. Intracerebroventricular (i.c.v.)
(18) Hepatic lymph flow increased only after ethacrynic acid and mannitol administration.
(19) The subcellular distribution of sialyltransferase and its product of action, sialic acid, was investigated in the undifferentiated cells of the rat intestinal crypts and compared with the pattern observed in the differentiated cells present in the surface epithelium.
(20) A phytochemical investigation of an ethanolic extract of the whole plant of Echites hirsuta (Apocynaceae) resulted in the isolation and identification of the flavonoids naringenin, aromadendrin (dihydrokaempferol), and kaempferol; the coumarin fraxetin; the triterpene ursolic acid; and the sterol glycoside sitosteryl glucoside.
Avid
Definition:
(a.) Longing eagerly for; eager; greedy.
Example Sentences:
(1) The characteristics of an arterial wall chondroitin sulfate proteoglycan (CS-PG) subfraction that binds avidly to low-density lipoproteins (LDL) was studied.
(2) There was found an insignificant prevalance of the antibody avidity in the patients with the forms of the disease of moderate severity and severe.
(3) In osteoarthritic cartilage, compared with normal cartilage, there was no increase in water binding but water content increased by 9 per cent and the avidity with which the newly bound water was held also increased.
(4) In our studies of the 131I-labeled anti-Thy 1.1 antibody treatment of murine lymphoma we have used cell binding assays with a combination of Lineweaver-Burk analysis to determine immunoreactivity and Scatchard analysis to determine antibody avidity.
(5) Potassium and K analogs (Tl, Rb, Cs) are avidly taken up into viable tumor cells whose Na+, K+-ATPase activity is elevated.
(6) The percentage of kidney-fixing antibody in each fraction and the degree of proteinuria induced as determined 24 h after injection increased with the avidity of the antibody fraction when equal doses were administered.
(7) The results also demonstrated that there was not any apparent correlation between the receptor-binding avidities and in vitro monooxygenase enzyme-induction potencies for the most active polynuclear aromatic hydrocarbons.
(8) We studied techniques to accurately quantify the adherence of L-[35S]methionine-labeled Candida albicans to human umbilical vein endothelial cells in a 96-well microtiter plate system while avoiding specific problems related to Candida coadherence and avid binding to plastic.
(9) Furthermore, we conclude that the pre-killer cell is distinct from a memory T cell because: i) its conversion to an effector cell is antigen-independent and ii) because, unlike the memory cell, pre-killers do not bind avidly to allogeneic cell monolayers.
(10) Avidity was estimated in liquid phase from the dissociation rate of preformed complexes of antibody and 125-iodinated insulin.
(11) Antibodies produced by PC-specific clones have a more restricted pattern of avidities and resemble in quality anti-PC antibodies produced in vivo.
(12) Cold target inhibition studies confirmed the cross-reaction, and together with conjugate dissociation studies, indicated that cross-reaction to be of lower "avidity" than the specific recognition of SB2.
(13) Avid, Boticca.com is a fashion website, which is about as girly as it gets, but you've come at it from a hard engineering background, haven't you?
(14) Thus, the avidity measurement is useful in understanding the immunological events which underlie various clinicopathological features of SLE.
(15) The aggregation, although of slow onset, was persistent and of high avidity.
(16) Nonopsonized L. pneumophila were avidly phagocytized by alveolar macrophages.
(17) Thereafter, 27S species adsorbed avidly to it and collapsed into characteristic configurations containing four globular domains, each linked to the others by three approximately 33-nm struts.
(18) High avidity DNP-binding cells gave rise to predominantly high avidity anti-DNP-PFC.
(19) Firstly, FcRIII do not cluster lannic acid-modified erythrocytes avidly bound to neutrophils but did not trigger clustering of FcRII.
(20) The study has revealed a faintly pronounced inverse correlation between the degree of avidity of serum antibodies and the level of infectious antigenemia.