37 results found

Search Results for: periodic

The Periodic Table: Its Story and Its Significance

The Periodic Table: Its Story and Its Significance      ... Read More


periodic Recurring at regular intervals of time. Origin: Gr.... Read More

Climate shifts — probability of randomness

Severe climate changes during the last ice-age could have been caused by random chaotic variations on Earth and not... Read More

A Guide to the Elements (Oxford)

A Guide to the Elements (Oxford)      ... Read More


reagent --> periodic acid Schiff reaction (Science: technique) A histochemical technique based on periodic acid oxidation... Read More

Pas stain

PAS stain --> periodic acid Schiff stain (Science: technique) A histochemical technique based on periodic acid oxidation... Read More

Chemistry for Dummies

Chemistry for Dummies     AUTHORS:  ... Read More

Alimentary canal

Definition of Alimentary canal What is the alimentary canal? The alimentary canal is a muscular hollow continuous tubular... Read More

Concatos disease

Concatos disease --> polyserositis chronic inflammation with effusions in several serous cavities resulting in fibrous... Read More


Carbon is one of the chemical elements found in nature. A chemical element refers to the pure substance of one type of atom.... Read More

Reverberating circuit

reverberating circuit A theory of periodic conduction through the cerebral cortex of trains of impulses traveling in... Read More

Schiffs reagent

Schiff's reagent An aqueous solution of basic fuchsin or pararosaniline which is decolorised by sulfur dioxide, commonly... Read More


Definition noun, plural: peritonites (pathology) The inflammation of the peritoneum Supplement Peritonitis pertains to the... Read More


Definition noun plural: microfilaments mi·cro·fil·a·ments, mī'krō-fil'ă-mĕnts A thin, helical, single-stranded... Read More

Reticular fiber

Definition noun, plural: reticular fibers A type of connective tissue fiber that is made up of type III collagen secreted by... Read More


PAS (Science: abbreviation) p-aminosalicylic acid; periodic acid-Schiff... Read More

Acid dye

Definition noun, plural: acid dyes (biological techniques) A dye containing acidic group(s) and is used in staining... Read More

Uterine cycle

Definition noun The cycle that depicts the changes in the endometrial lining occurring during a menstrual cycle, and is... Read More

Concurrent review

Concurrent review review of the medical necessity of hospital or other health facility admissions, upon or within a short... Read More

Facultative heterochromatin

Definition noun Heterochromatin that may lose its condensed state and becomes genetically active Supplement Heterochromatin... Read More


Protist Definition What is a protist? All protists are eukaryotes, i.e. organisms with the nucleus. However, they are... Read More

Genetics Laboratory Investigations (13th Edition)

Genetics Laboratory Investigations (13th Edition)      ... Read More

Atomic number

Atomic number (Science: chemistry) symbol z. The number of protons in the nucleus of an atom and also its characteristic... Read More


Definition noun The periodic physiologic discharge through the vagina of blood, cervical mucus, vaginal secretions, and... Read More


Cycle a round or succession of observable phenomena, recurring usually at regular intervals and in the same... Read More

Principles of Instrumental Analysis

Principles of Instrumental Analysis       ... Read More


Frequency 1. (Science: physics) The number of occurrences of a periodic or recurrent process per unit time, for example the... Read More


Definition noun plural: nitrogens ni·tro·gen, ˈnɐɪtʰɹədʒən (biochemistry) A colorless, odorless, gaseous... Read More

Atomic weight

Atomic weight (Science: chemistry) The average weight of an atom of an element, i.e. The total mass of protons and neutrons... Read More


Oxygen Definition In biochemistry, oxygen is the colorless, odorless, gaseous element represented by the symbol "O", with... Read More


Definition noun, plural: terms (biology) (1) The end of the normal gestation period or point at which birth is... Read More

Methods of Breaking Seed Dormancy

Definition of Seed Dormancy: Non – germination of seeds due to absence of suitable conditions is termed as dormancy.... Read More

Northern Africa and biodiversity

Northern Africa and biodiversity Content Partner: United Nations Environment Programme (other articles) Article Topics:... Read More

Chemistry: The Central Science, 10th Edition

Chemistry: The Central Science, 10th Edition     ... Read More

The 13th Element: The Sordid Tale of Murder, Fire, and Phosphorus

The 13th Element: The Sordid Tale of Murder, Fire, and Phosphorus  ... Read More

Oxygen: The Molecule that Made the World

Oxygen: The Molecule that Made the World      ... Read More

Permanent Tattoo Means Permanent Immune Action Of Macrophages

Have you ever wondered why a permanent tattoo seemed to last forever? A simple assumption would be is that the ink could... Read More