38 results found

Search Results for: radical

Free radical

Free radical a chemically active atom or molecular fragment containing a chemical charge due to an excess or deficient... Read More


radical 1. (Science: chemistry) An atom or or electrically neutral group that has one or more unpaired electrons. 2.... Read More


Definition noun plural: disaccharides di·sac·cha·ride, daɪˈsækəɹaɪd (biochemistry) A (carbohydrate) composed of... Read More


Definition noun plural: glycogens gly·co·gen, glī′kə-jən A multi-branched polymer of glucose, mainly produced in... Read More

Theory of Neuroscience

Nezih OKTAR Journal of Neurological Sciences (Turkish) 2006, Volume 23, Number 3, Page(s) 155-158. An Open Access... Read More

Null hypothesis

Null Hypothesis Definition Null hypothesis is defined as “the commonly accepted fact (such as the sky is blue) and... Read More


Leu symbol for leucine... Read More


Thr symbol for threonine or its radical... Read More


sulfhydryl The radical -sH; contained in glutathione, cysteine, coenzyme A, lipoamide (all in the reduced state), and in... Read More

Oxidative phosphorylation

Definition noun A metabolic pathway that generates ATP from ADP through phosphorylation that derives the energy from the... Read More


Mutagen Definition What is a mutagen? A mutagen is a substance or agent that causes DNA impairment that results in the... Read More

Carboxyl group

Definition noun -COOH: a functional group comprised of a carbonyl group and a hydroxyl group, and present in all carboxylic... Read More


Halogen (Science: chemistry) An electronegative element or radical, which, by combination with a metal, forms a haloid salt;... Read More


tenomyoplasty --> tenontomyoplasty A combined tenontoplasty and myoplasty, used in the radical correction of a... Read More

Reactive oxygen species

Definition noun Chemically reactive molecules and ions of oxygen with an unpaired electron Supplement Reactive oxygen... Read More

Phosphate group

Definition noun, plural: phosphate groups (biochemistry) A functional group or radical comprised of phosphorus attached to... Read More

Mitochondrial DNA

Mitochondrial DNA Definition noun plural: mitochondrial DNAs The genetic material in the mitochondrion that carries code... Read More


Definition noun, plural: catalases An enzyme that catalyzes the decomposition of hydrogen peroxide into oxygen and... Read More

Chemical Composition of the Body

In order to fully understand the mechanisms of human physiology, it is important to have an understanding of the chemical... Read More


Acetyl (Science: biochemistry, chemistry) this is the radical of acetic acid, it contains a carbonyl and a methyl group that... Read More


Ion (Science: chemistry, radiobiology) atomic particle, atom or chemical radical bearing an electric charge, either negative... Read More


shin 1. To climb a mast, tree, rope, or the like, by embracing it alternately with the arms and legs, without help of steps,... Read More


Ammonium (Science: chemistry) a compound radical, NH4, having the chemical relations of a strongly basic element like the... Read More


revolution 1. The act of revolving, or turning round on an axis or a center; the motion of a body round a fixed point or... Read More


vinegar 1. A sour liquid used as a condiment, or as a preservative, and obtained by the spontaneous (acetous) fermentation,... Read More


Basic 1. (Science: chemistry) Relating to a base; performing the office of a base in a salt. Having the base in excess, or... Read More


neutral 1. Not engaged on either side; not taking part with or assisting either of two or more contending parties; neuter;... Read More


Definition noun, plural: valences (biology, immunology) The relative capability of a substance (e.g. antibody) to act... Read More


substitution 1. The act of putting one thing in the place of another, especially the chemical replacement of one element or... Read More


pitcher 1. A wide-mouthed, deep vessel for holding liquids, with a spout or protruding lip and a handle; a water jug or jar... Read More


Animal Definition An animal (plural: animals) refers to any of the eukaryotic multicellular organisms of the biological... Read More


Amyl (Science: chemistry) a hydrocarbon radical, C5H11, of the paraffine series found in amyl alcohol or fusel oil,... Read More


monad 1. An ultimate atom, or simple, unextended point; something ultimate and indivisible. 2. (Science: philosophy) The... Read More


Acetate (Science: biochemistry) a salt or ester of acetic acid, specifically, a synthetic textile fibre made from partially... Read More


Glu symbol for glutamic acid or its acyl radical,... Read More


Hydroxyl (Science: chemistry) a compound radical, or unsaturated group, ho, consisting of one atom of hydrogen and one of... Read More


Hydroxylation Hydroxylate, to introduce hydroxyl into (a compound or radical) usually by replacement of... Read More


Ethereal 1. Pertaining to the hypothetical upper, purer air, or to the higher regions beyond the earth or beyond the... Read More