88 results found

Search Results for: 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

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

Gamma ray

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

Ray

ray (Science: botany) A zygomorphic flower in the family asteraceae, a radial band of cells traversing the conducting... Read More

Photolysis

Photolysis Definition We define photolysis as a chemical process in which chemical compounds or molecules are split into... Read More

Anode rays

Anode rays Those originating in a gas discharge tube and moving in a direction opposite to that of cathode ray's; made up of... Read More

Actinopterygian

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

Asteraceae

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

Commensalism

Commensalism Definition What is commensalism? Literally, commensalism is a Latin word that means ‘to eat at the same... 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

Taxonomy

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

Ct scan

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

Electromagnetic radiation

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

Ultraviolet radiation

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

Vascular Ray

A sheet of vascular tissue separating the vascular... 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

Infrared

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

Oscilloscope

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

Parenchyma

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

Species

Every living organism is unique when you observe its morphological, anatomical, molecular, genetic, biochemical, chemical,... Read More

Microwave

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

Sting

sting 1. (Science: zoology) Any sharp organ of offense and defense, especially when connected with a poison gland, and... Read More

Wavelength

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

Electromagnetic spectrum

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

Plane

Plane 1. To make smooth; to level; to pare off the inequalities of the surface of, as of a board or other piece of wood, by... Read More

Radiant

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

Deoxyribonucleic acid

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

Undulatory

undulatory moving in the manner of undulations, or waves; resembling the motion of waves, which successively rise or swell... Read More

Leaves

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

Teleroentgenography

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

Tapetum lucidum

Definition noun, plural: tapeta lucida A layer of tissue in the choroid or in the retinal pigment epithelium of the eye of... 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

Phloem parenchyma

Definition noun The parenchyma cells in between the sieve tubes of the phloem, and functions primarily for food... Read More

Angiosperm

Angiosperms Definition What is an angiosperm? An angiosperm is a plant that produces flowers. The angiosperms, also... 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

Mutagen

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