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delta

 [del´tah]
1. the fourth letter of the Greek alphabet, Δ or δ; used in chemical names to denote the fourth of a series of isomeric compounds or the carbon atom fourth from the carboxyl group, or to denote the fourth of any series.
2. a triangular area.

Δ

1. Fourth letter of the Greek alphabet, delta.
2. In chemistry, denotes a double bond, usually with a superscript to indicate position in a chain (Δ5), application of heat in a reaction (A B), absence of heat treatment (), distance between two atoms in a molecule, or position of a substituent located on the fourth atom from the carboxyl or other primary functional group (δ); change (Δ); thickness (δ); chemical shift in NMR (δ).
3. anatomy a triangular surface.

del·ta (Δ),

(del'tă),
1. Fourth letter of the Greek alphabet, Δ (capital), δ (lower case).

δ

/δ/ (delta, the fourth letter of the Greek alphabet) heavy chain of IgD; δ chain of hemoglobin.

delta

/del·ta/ (delt´ah)
1. the fourth letter of the Greek alphabet; see also δ-.
2. a triangular area.

delta

[del′tə]
Δ, δ, fourth letter of the Greek alphabet.

YY1

A gene on chromosome 14q that encodes a ubiquitous transcription factor belonging to the GLI-Kruppel class of zinc finger proteins, which directs histone deacetylases or histone acetyltransferases to myriad promoters activating or repressing their activity, implicating histone modification in YY1 activity.

δ,

Δ
Abbreviation for delta; diopter.

del·ta

(Δ, δ) (del'tă)
1. Fourth letter of the Greek alphabet.
2. chemistry A double bond, usually with a superscript to indicate position in a chain (Δ5); application of heat in a reaction (A B); absence of heat treatment (Δ); distance between two atoms in a molecule, or position of a substituent located on the fourth atom from the carboxyl or other primary functional group (δ); change (Δ); thickness (δ); chemical shift in NMR (δ).
3. anatomy A triangular surface.

delta,

n a Greek letter symbolized by upper case Δ or lower case δ. See also Greek letters.

Δ

, δ
1. Fourth letter of the Greek alphabet, delta.
2. anatomy a triangular surface.

delta

1. the fourth letter of the Greek alphabet, Δ or δ; used in chemical names to denote the fourth of a series of isomeric compounds or the carbon atom fourth from the carboxyl group, or to denote the fourth of any series.
2. a triangular area.

delta T lymphocyte
see T lymphocyte.
References in periodicals archive ?
Background: In addition to heading Deltic, based in El Dorado.
bar] IN TOWN: Deltic locomotive, 55 022 Royal Scots Grey at Huddersfield Railway Station Photos courtesy of Jonathan Stevenson
Butler, who lives across Gordon Road from Smith's patch of woods and is surrounded by Deltic land to the north, south and east, doesn't want to get caught up in the development fray between her neighbors.
Because of the way Deltic configured the route of Chenal Valley Drive, Smith's land has no frontage on it.
Smith asked for authority to condemn a 1,500-SF strip of land owned by Deltic to gain access to develop his proposed Wildwood residential project in west Little Rock.
Deltic was able to increase the harvest volume of both pine sawtimber and pulpwood because of the favorable logging conditions during the current-year period.
Part of the stipulation was that he not lease, trade or sell any portion of the property to Deltic," said Elizabeth Charleboix, whose family owned the land since 1944.
Like other publicly traded companies affected by the Dodd-Frank Wall Street Reform & Consumer Protection Act of 2010, Deltic Timber is asking its shareholders to give advisory approval to its executive compensation plan.
During the fourth quarter of 2011, Deltic harvested 92,934 tons of pine pulpwood at an average price of $8 per ton, compared to 94,365 tons harvested at an average price of $9 per ton for the same period of 2010.
Trustee had concerns about Phoenix Realty's filing because it came just hours after eviction papers were signed by a judge to remove Stephen Walker, the COO of a related Phoenix entity, from a house that belonged to Deltic Timber Corp.
Online replays of the call will be available through the Deltic website, and a recording of the call will be available until Friday, March 2, by dialing 1-888-286-8010 and referencing replay passcode identification number 71273769.
Online replays of the call will be available through the Deltic website, and a recording of the call will be available until Thursday, November 3, by dialing 1-888-286-8010 and referencing replay passcode identification number 29206711.