Search Results for: periodic
Valence electron
What are valence electrons? Why are they significant? Valence electrons definition in chemistry: The electrons in an atom's... Read More
Alimentary canal
Definition of Alimentary canal What is the alimentary canal? The alimentary canal is a muscular hollow continuous tubular... Read More
Nucleosome
Nucleosome Definition Every organism is made of deoxyribonucleic acid, also known as DNA. DNA is made up of numerous... Read More
Northern Africa and biodiversity
Northern Africa and biodiversity Content Partner: United Nations Environment Programme (other articles) Article Topics:... Read More
Peritonitis
Definition noun, plural: peritonites (pathology) The inflammation of the peritoneum Supplement Peritonitis pertains to the... Read More
Unified atomic mass unit
Unified Atomic Mass Unit Definition The Unified Atomic Mass Unit (u) (or simply atomic mass unit) refers to the 1/12... Read More
Facultative heterochromatin
Definition noun Heterochromatin that may lose its condensed state and becomes genetically active Supplement Heterochromatin... 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
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
Schiffs reagent
Schiff's reagent An aqueous solution of basic fuchsin or pararosaniline which is decolorised by sulfur dioxide, commonly... Read More
Reverberating circuit
reverberating circuit A theory of periodic conduction through the cerebral cortex of trains of impulses traveling in... Read More
Microfilament
Definition noun plural: microfilaments mi·cro·fil·a·ments, mī'krō-fil'ă-mĕnts A thin, helical, single-stranded... 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
Carbon fixation
Carbon Fixation Definition We know that the earth contains many elements. The periodic table shows us just how many... Read More
Menstruation
Definition noun The periodic physiologic discharge through the vagina of blood, cervical mucus, vaginal secretions, and... 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
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