96 results found

Search Results for: abnormal

Abnormal

Abnormal Not normal, contrary to the usual structure, position, behaviour or rule. What is normal and what is... Read More

Respiration rate

Respiration Rate Definition Respiration rate is a vital life process that expresses the breathing rate in an organism... Read More

Cancer

Cancer definition In biology, cancer is defined as the malignant growth due to uncontrolled cell division. It is now used... Read More

Spermiogenesis

Spermiogenesis Definition Spermiogenesis is the stage of spermatogenesis wherein the spermatids differentiate into mature... Read More

Growth

Growth Definition What is growth in biology? Growth is the irreversible increase of an organism’s size over a given... Read More

Circulation

Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More

Genetic Information and Protein Synthesis

Genetic Code Genes are sequences of DNA nucleotides that carry and transmit the information specifying amino acid sequences... Read More

Myocardium

Myocardium Definition What is the myocardium of the heart?  It is the muscular middle layer of the heart that is... Read More

Diaphoresis

What is Diaphoresis? Diaphoresis is referred to excessive or profuse perspiration or sweating which may be due to... Read More

Sphingolipidosis

Definition noun, plural: sphingolipidoses A lysosomal disease due to an abnormal sphingolipid... Read More

Hyperplasia

Hyperplasia (Science: pathology) The abnormal multiplication or increase in the number of normal cells in normal arrangement... Read More

Gamete

Definition of Gamete What is a gamete? A gamete is the mature reproductive or sex cell that contains a haploid number of... Read More

Cross-linking

Cross-linking Definition Cross-linking, in general, means the forming of cross-links between the joining structures. In... Read More

Benign

Benign Definition How to define benign? The meaning of benign in a general sense is "beneficial" and "pleasant". Benign is... Read More

Genome

Genome Definition What is a genome? As defined in biology, a genome is a complete set of deoxyribonucleic acid (DNA) within... Read More

Decerebrate rigidity

Definition noun An involuntary posturing whereby the arms are extended on the sides while the head is arched back, as... Read More

Frameshift mutation

Define Frameshift Mutation What is a frameshift mutation? In biology, insertions or deletions of nucleotides in the coding... Read More

Lactogen

Lactogen An agent that stimulates milk production or secretion. Origin: Lacto-- g. -gen, producing human placental lactogen... Read More

Lipidosis

Definition noun, plural: lipidoses A type of lysosomal storage disease that is often caused by a deficiency of enzymes... Read More

Leukocytosis

Definition noun, plural: leukocytoses An abnormal increase in white blood cell count in the blood. Supplement Leukocytosis... Read More

Circadian rhythm

Circadian Rhythm Definition A circadian rhythm is an endogenously-driven biological rhythm with a period close to 24... Read More

Nervous colon syndrome

nervous colon syndrome (Science: syndrome) A common gastrointestinal disorder characterised by abdominal pain, bloating,... Read More

Sarcolemma

Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More

Smooth endoplasmic reticulum

Smooth Endoplasmic Reticulum Definition Smooth endoplasmic reticulum (sER) is (a part of) endoplasmic reticulum that is... Read More

Contrast enhancement

Contrast enhancement The intravenous administration of water-soluble iodinated contrast material, which increases the CT... Read More

Ct scan

Ct scan --> computed tomography (Science: investigation, procedure, radiology) a special radiographic technique that uses... Read More

Paroxysmal cerebral dysrhythmia

paroxysmal cerebral dysrhythmia A diffusely abnormal electroencephalogram often seen with... Read More

Ophthalmomalacia

ophthalmomalacia abnormal softening of the eyeball. Origin: ophthalmo-- G. Malakia,... Read More

Dysbolism

Dysbolism abnormal, but not necessarily morbid, metabolism, as in alkaptonuria. Origin: dys-- g. Bole (metabole), - -ismos,... Read More

Temporal dispersion

temporal dispersion Asynchronous repolarization of myocardial fibres that predisposes to abnormal current flow and ectopic... Read More

Proerythroblast

Definition noun, plural: proerythroblasts A progenitor cell that arises from the CFU-e, and then develops to become an... Read More

Hypermenorrhoea

Definition noun The extremely heavy or long periods of menstrual period in a woman of reproductive... Read More

Chromosomal mutation

Every living thing is made up of DNA. Our DNA is what makes us unique and different in the world. Our DNA is made up of... Read More

Body fluid

Body Fluids Definition What is body fluid? Literally, body fluid is the fluid of the body. The adult human body is ~50-60%... Read More

Chromosomes X and Y and Sex Determination

Reviewed by: Mary Anne Clark, Ph.D. In humans, the normal chromosome complement is 46, consisting of 22 pairs of... Read More

Respiration

Organization of the Respiratory System Each lung is composed of air sacs called alveoli - the sites of gas exchange with... Read More

Consciousness and Behavior

States of Consciousness Defined either by (1) behavior - ranging from attentive and alert to coma and (2) electrical... Read More

Homeostatic Mechanisms and Cellular Communication

Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory... Read More

Insects

To learn more about arthropods, look at the previous tutorial. The Class Insecta of the Arthropoda Phylum is by far the... Read More

Sphingolipid

Definition noun plural: sphingolipids sphin·go·lip·id A type of lipid with a sphingoid base (e.g. sphingosine and... Read More