(n.) One of a group of metameric hydrocarbons, C5H10, of the ethylene series. The colorless, volatile, mobile liquid commonly called amylene is a mixture of different members of the group.
Example Sentences:
Colorless
Definition:
(a.) Without color; not distinguished by any hue; transparent; as, colorless water.
(a.) Free from any manifestation of partial or peculiar sentiment or feeling; not disclosing likes, dislikes, prejudice, etc.; as, colorless music; a colorless style; definitions should be colorless.
Example Sentences:
(1) The pI 5.0 component, designated F-5.0, was faint yellow, with a broad absorption in the range of 400-450 nm, while the pI 7.5 component, designated F-7.5, was colorless and did not absorb in that range.
(2) L-form colonies appeared colorless, and chemical analysis demonstrated that, if the L-form produces pigment at all, which was not demonstrated, it could not have been more than 3.6% of that produced by the bacterial form.
(3) We have purified this colorless compound and identified it as 5,6-dihydroxyindole-2-carboxylic acid.
(4) Aldol condensation and dehydration of 2 mol of the saturated aldehydes initially gave the alpha, beta-unsaturated aldehydes, which in turn reacted with TBA to form the colorless adducts, pyranopyrimidine derivatives.
(5) Ten days after the insertion, samples of clear and colorless CSF up to 1 ml could be withdrawn.
(6) The activities of phosphofructokinase (PFK), fructose diphosphatase (FDP), nicotinamide adenine dinucleotide (NAD) and NAD phosphate (NADP)-linked isocitrate dehydrogenases (IDHNAD, IDHNADP), two NAD-linked glutamate dehydrogenases (GDH1, GDH2), and isocitrate lyase were studied during the development of the two phenotypes, ordinary colorless and resistant sporangia (OC and RS plants), of water mold Blastocladiella emersonii in synchronized liquid cultures.
(7) AchE synthesized in culture cleaved acetylthiocholine to thiocholine, which stochiometrically reduced the colorless indicator DTNB to a highly colored product.
(8) Mutants or colonial variants have been isolated that fail to absorb the dye and produce colorless colonies.
(9) The pH optimum for the reaction was between 4 and 7, and the temperature optimum was between 30 and 50 degrees C. The compound was purified by ion-exchange chromatography, isolated as colorless needles, and identified as 6-hydroxypyridoxine from UV, PMR, IR and MS spectral data.
(10) Infected cell monolayers stained intensely while uninfected monolayers remained colorless.
(11) Colorless and other subtle manifestations of peritoneal disease can be seen more easily by painting the peritoneal surface with bloody peritoneal fluid.
(12) The antibiotic, obtained as a colorless amorphous powder having the molecular formula C48H77N7O16, is an antifungal antibiotic active against yeasts and filamentous fungi.
(13) It was purified by use of column chromatography on Sepabeads SP206, Amberlite IRC-50, MCI gel CHP-20P and Sephadex G-10 and then isolated as colorless needles.
(14) The final product was readily soluble, clear and almost colorless upon reconstitution.
(15) The nearly colorless final macrocyclic product was characterized by TLC, IR, NMR, and mass spectrometry.
(16) The cone type with the colorless fluorescent oil droplet (FC cone) has an oil droplet size intermediate between those contained in the green single cones and the cone with the clear colorless oil droplet (CC cone); it typically has a short (15 microns long) oblique axon and it forms approximately 13% of the cones in the retina.
(17) It was purified by column chromatography and centrifugal partition chromatography (CPC) and then was isolated as a colorless powder.
(18) Elasnin is a neutral, colorless, and viscous oil (ND17 = 1.4983, [alpha]18D -0.9 degrees, lambdaEtOHmax 291 nm (epsilon, 7,760) having a molecular formula of C24H40O4 (MW 392) as shown by its elemental analysis and mass spectrum.
(19) Lenses exposed to 308-nm ultraviolet (UV) radiation for 10-30 minutes showed significant yellow-brown pigmentation and colorless opacification compared with dark controls.
(20) There is a new radiochromic film, a highly uniform, thin (100-microns) detector whose sensitive layer (6 microns thick) changes from colorless to blue by dye polymerization without processing, upon exposure to ionizing radiation.