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Opa (Greek: ώπα) is a common Mediterranean, Eastern European, Middle Eastern, North African, South Asian, South American, Central American, and Jewish emotional expression. It is frequently used during celebrations such as weddings or traditional dancing . [ 1 ]
Opa (Swedish band), a pop/folk band formed in 2012; Opa (Uruguayan band), a 1969-1977 US-based jazz fusion group "Opa" (song), by Giorgos Alkaios, representing Greece at Eurovision 2010 "Opa Opa", a 1992 song by Notis Sfakianakis; covered by Antique (1999) and Despina Vandi (2004) Opa Opa, or Mera Me Ti Mera, by Antique, 1999
An oropharyngeal airway (also known as an oral airway, OPA or Guedel pattern airway) is a medical device called an airway adjunct used in airway management to maintain or open a patient's airway. It does this by preventing the tongue from covering the epiglottis, which could prevent the person from breathing. When a person becomes unconscious ...
Phthalaldehyde (sometimes also o-phthalaldehyde or ortho-phthalaldehyde, OPA) is the chemical compound with the formula C 6 H 4 (CHO) 2. It is one of three isomers of benzene dicarbaldehyde , related to phthalic acid .
The Office of Price Administration (OPA) was established within the Office for Emergency Management of the United States government by Executive Order 8875 on August 28, 1941. The functions of the OPA were originally to control money ( price controls ) and rents after the outbreak of World War II .
Osanyin Staff Topped by Abstract Figure of a Bird, Brooklyn Museum Osanyin staff. Yoruba herbalists and priests enlist the aid of Osanyin, the spirit of herbal medicines, [1] or Opa Erinle, in their work against mental and physical illness caused by malevolent forces and individuals.
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An optical parametric amplifier, abbreviated OPA, is a laser light source that emits light of variable wavelengths by an optical parametric amplification process. It is essentially the same as an optical parametric oscillator , but without the optical cavity (i.e., the light beams pass through the apparatus just once or twice, rather than many ...