tetrad

Four homologous chromatids paired together during first meiotic prophase. More generally, any group of four objects.

Tetrad

Unit of quantity equal to four.
Found on http://www.diracdelta.co.uk/science/source/t/e/tetrad/source.html

Tetrad

Tet'rad noun [ Latin tetras , - adis , Greek ..., ...: confer French tétrade .] 1. The number four; a collection of four things; a quaternion. 2. (Chemistry) A tetravalent or quadrivalent atom or radical; as, carbon is a tetrad .
Found on http://www.encyclo.co.uk/webster/T/34

tetrad

A group of four, four pollen grains remaining fused together at maturity. ... (09 Oct 1997) ...
Found on http://www.encyclo.co.uk/local/20973

tetrad

(tet´rad) a group of four similar or related entities, such as (1) any element or radical having a valence, or combining power, of four; or (2) a group of four chromosomal elements formed in the pachytene stage of the first meiotic prophase.
Found on http://www.encyclo.co.uk/local/21001

Tetrad

• (n.) The number four; a collection of four things; a quaternion. • (n.) A tetravalent or quadrivalent atom or radical; as, carbon is a tetrad.
Found on http://thinkexist.com/dictionary/meaning/tetrad/

tetrad

(from the article `meiosis`) ...the contraction of the chromosomes in the nucleus of the diploid cell. Homologous paternal and maternal chromosomes pair up along the midline of ...
Found on http://www.britannica.com/eb/a-z/t/30

tetrad

(from the article `coccus`) ...rows or chains of such cells are called streptococci; grapelike clusters of cells, staphylococci; packets of eight or more cells, sarcinae; and ...
Found on http://www.britannica.com/eb/a-z/t/30

Tetrad

[genetics] The tetrad is the four spores of a yeast or Chlamydomonas produced after meiosis. After parent haploids mate, they produce diploids. Under appropriate environmental conditions, diploids sporulate and undergo meiosis. The meiotic products, spores, remain packaged in the parental cell body to produce the tetrad. If the two parents ...
Found on http://en.wikipedia.org/wiki/Tetrad_(genetics)

Tetrad

[music] A tetrad is a set of four notes in music theory. When these four notes form a tertian chord they are more specifically called a seventh chord, after the diatonic interval from the root of the chord to its fourth note (in root position close voicing). Four-note chords are often formed of intervals other than thirds in 20th- and 21st-...
Found on http://en.wikipedia.org/wiki/Tetrad_(music)

tetrad

Type: Term Pronunciation: tet′rad Definitions: 1. A collection of four things having something in common, such as a deformity with four features, Fallot tetralogy. 2. In chemistry, a quadrivalent element. 3. In heredity, a bivalent chromosome that divides into four chromatids during meiosis. Synonyms: tetralogy
Found on http://www.medilexicon.com/medicaldictionary.php?t=91024

Tetrad

[Greek philosophy] The tetrad was the name given to the number four in Pythagorean philosophy. There were four seasons and four elements, and the number was also associated with planetary motions and music. ...
Found on http://en.wikipedia.org/wiki/Tetrad_(Greek_philosophy)

Tetrad

[area] A tetrad is an area 2 km x 2 km square. The term has a particular use in connection with the British Ordnance Survey national grid, and then refers to any of the 25 such squares which make up a standard hectad. Tetrads are sometimes used by biologists for reporting the distribution of species to maintain a degree of confidentiality a...
Found on http://en.wikipedia.org/wiki/Tetrad_(area)

Tetrad

[index notation] for an n-dimensional manifold. Locally, at least, this gives a basis for the 1-forms, dxi where d is the exterior derivative. The dual basis for the tangent space T is ei. Now, let`s choose an orthonormal basis for the fibers of T. The rest is index manipulation. ...
Found on http://en.wikipedia.org/wiki/Tetrad_(index_notation)

Tetrad

The four chromatids in each cluster during synapsis; formed by the two sister chromatids in each of
Found on http://www.superglossary.com/Glossary/Science/Biology/

tetrad

A unit of four pollen grains.
Found on http://www.anbg.gov.au/cpbr/cd-keys/orchidkey/html/glossary.html

Tetrad

[astronomy] In astronomy, a tetrad is a set of 4 total lunar eclipses within 2 years. == List of tetrad events == ===1949-2000=== === 2001-2051 === == See also == ...
Found on http://en.wikipedia.org/wiki/Tetrad_(astronomy)

Tetrad

Combinations of four hues that are equal distance from one another, forming a square or rectangle on the color wheel.
Found on http://www.sensationalcolor.com/understanding-color/theory/color-term-gloss

Tetrad

A color scheme based on four hues equidistant on the color wheel—for example, green, yellow-orange, red, and blue-violet.
Found on https://pixel77.com/glossary-design-beginners-50-color-related-terms/
No exact match found