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1. chemistry denotes the position seven atoms from the carboxyl group or other primary functional group.
2. Symbol for viscosity.


[ē′tə, ā′tə]
H, η, the seventh letter of the Greek alphabet.


A gene on chromosome 4q31.22 that encodes endothelin-A receptor, a member of the endothelin receptor group of G-protein-coupled receptors, located primarily in the vascular endothelial cells where they play a role in vasoconstriction, vasodilation, bronchoconstriction and cell proliferation.

Molecular pathology
EDNRA polymorphisms have been linked to migraine headache resistance.


Abbreviation for eta.


Abbreviation for eta.


(Η, η) (ā'tă)
1. The seventh letter of the Greek alphabet.
2. chemistry Denotes the position seven atoms from the carboxyl group or other primary functional group.
3. Viscosity.


estimated transmitting ability.
References in periodicals archive ?
Analysis of the 256 eta Aquariids observed by the author gave an overall mean magnitude of 2.
The CTR Workforce Reconstitution ETA will perform the work analysis and manpower development documentation needed to align the CTR workforce with NGEN acquisition and mission strategies.
An additional benefit is that students improve their own fitness while learning with eta.
Moves to develop regional democratic freedoms, enhance socioeconomic conditions and bring ETA members back into normal society were carried out simultaneously with the ongoing struggle against armed terrorism.
Relatives of victims killed by ETA also insisted that group disband and tell authorities where its guns and bomb-making material are hidden.
On Saturday, Eta came under pressure from Batasuna, its political wing, to show its willingness to permanently renounce violence.
ETA Star Property Developers LLC is a part of the ETA Ascon & Star Group, the USD 6 billion conglomerate.
But Eta Carinae has given a clue that it could go off, says Chandra X-ray Observatory astrophysicist Peter Edmonds.
ARMED Basque separatist group ETA today said it had called off the cease-fire it declared last year, setting the stage for a resumption of attacks in Spain.
An explosion at the new Terminal 4 parking garage of the Madrid Airport on December 30 is being attributed to the Basque terrorist group ETA (Euskadi Ta Askatasuna, Basque for "Basque Homeland and Freedom").
Yet, even after taking responsibility for a blast that killed two people, the Basque separatist group ETA claims that it is adhering to a permanent ceasefire declared in March.