89 results found

Search Results for: x-ray

X-ray

Definition noun, plural: X-rays (1) A ray characterized generally by its wavelength ranging from 0.01 to 10 nm, and... Read More

Ultraviolet ray

Definition noun, plural: ultraviolet rays A ray characterized generally by a wavelength between 10 nm to about 400... Read More

Gamma ray

Definition noun, plural: gamma rays Very powerful and penetrating, high-energy electromagnetic radiation of shorter... Read More

Ct scan

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

Ultraviolet radiation

Definition noun A form of electromagnetic radiation emitting ultraviolet rays Supplement The electromagnetic radiation is... Read More

Electromagnetic radiation

Definition noun The radiation that consists of associated, interacting electric and magnetic field waves traveling at the... Read More

Reflected ray

Reflected ray A ray of light or other form of radiant energy which is thrown back from a nonpermeable or nonabsorbing... Read More

Asteraceae

'Asteraceae'', composite family. A single family enclosed in order Asterales in subclass Asteridae. The other name -... Read More

Infrared

Definition noun A form of electromagnetic radiation with wavelengths ranging between 770 nm and 1000 nm Supplement The... Read More

Actinopterygian

Definition noun, plural: Actinopterygians Any of a group of Osteichthyes characterized by possessing lepidotrichia (i.e. fin... Read More

Microwave

Definition noun A form of electromagnetic radiation that is generally characterized by wavelengths ranging from one meter to... Read More

Electromagnetic spectrum

Definition noun The spectrum of all types of electromagnetic radiation Supplement The electromagnetic spectrum includes... Read More

Wavelength

wavelength (Science: radiobiology) The length of a single cycle of a wave, usually measured from crest-to-crest. For... Read More

Hydrophobic

Hydrophobic Definition The fear of mixing or reacting with water under a given set of reaction parameters is often referred... Read More

Sarcopterygian

Definition noun, plural: Actinopterygians Any of a group of Osteichthyes characterized primarily by their lobed... Read More

Plant Tissues

Plants are composed of three major organ groups: roots, stems, and leaves. As we know from other areas of biology, these... Read More

Taxonomy

Taxonomy Definition The term "taxonomy" was developed from two Greek words, "taxis," meaning arrangement, and "nomia,"... Read More

Artefact

Artefact --> artifact Something artificial, a distortion that does not reflect normal anatomy or pathology, not usually... Read More

Reconstruction

reconstruction The computerised synthesis of one or more two-dimensional images from a series of x-ray projections in... Read More

Nucleic acid

Definition noun plural: nucleic acid nu·cle·ic ac·id, nuˈkleɪ.ɪk ˈæsɪd Any of the group of complex compounds... Read More

Mri

MRI --> Magnetic Resonance Imaging A special imaging technique used to image internal stuctures of the body, particularly... Read More

Spot-film radiography

spot-film radiography An x-ray of a localised region, usually under study by... Read More

Parenchyma

Parenchyma Definition What does parenchyma mean? Let's define the word "parenchyma". Most of the functional tissues in... Read More

Teleroentgenography

teleroentgenography --> teleradiography radiography with the x-ray tube positioned about 2 m from the film thereby... Read More

Coughing Cats May Be Allergic to People, Vets Say

    People can trigger asthma attacks in cats, according to veterinarians at a Scottish... Read More

Oscilloscope

oscilloscope (Science: instrument) An oscillograph in which the record of oscillations is continuously visible. cathode ray... Read More

Radiate

radiate 1. To emit rays; to be radiant; to shine. Virtues shine more clear In them kings, and radiant like the sun at noon.... Read More

Wards

Ward's triangle An area of diminished density in the trabecular pattern of the neck of the femur evident by x-ray as well as... Read More

Densitometer

Densitometer 1. An instrument for measuring the density of a fluid. Synonym: densimeter. 2. An instrument for measuring, by... Read More

Mutagen

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

Myoglobin

myoglobin (Science: physiology) protein (17.5 kD) found in red skeletal muscle. It was the first protein for which the... Read More

Harris lines

Definition noun Lines near the end of a juvenile long bone (e.g. tibia), detected through radiographs (e.g. by X-ray), and... Read More

Spermiogenesis

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

Deoxyribonucleic acid

Deoxyribonucleic Acid (DNA) Definition A nucleic acid refers to any of the group of complex compounds made up of linear... Read More

Radiodensity

Definition noun The state or quality of being radiodense, i.e. dense to X-rays or other radiation Supplement In radiography,... Read More

Leaves

Leaves are highly efficient solar energy converters. They capture light energy and through the process of photosynthesis.... Read More

Anatomy

Anatomy Definition Often we hear the term 'anatomy' while learning about the body and how it works. What is anatomy? What... Read More

photomedicine

Photomedicine Definition Photomedicine is a branch of medicine that specializes in the therapeutic application of light. As... Read More

Radiant

radiant 1. Emitting or proceeding as from a center; rays; radiating; radiate. 2. Especially, emitting or darting rays of... Read More

H and d curve

Definition noun A graph in which the density of the photographic film (vertical axis) is plotted against the logarithm of... Read More