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Opa (Greek: ώπα) is a common Mediterranean, Eastern European, Middle Eastern, North African, South Asian, Latin American, and Hebrew emotional expression. It is frequently used during celebrations such as weddings or traditional dancing . [ 1 ]
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.
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 ...
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 .
OPA Co., Ltd. (Oriental Park Avenue), a Japanese clothing retail chain and subsidiary of Daiei Ordre des Palmes Academiques , an Order of Chivalry of France for academics and cultural and educational figures
After OPA was enacted, the shipping industry threatened to boycott the ports of the United States to protest this new industry liability in both federal and state laws. In particular, the oil and shipping industries objected to the inconsistency between the OPA and the international, federal and state laws that are impacted.
Aviation pioneer Glenn Curtiss retired from aircraft development and manufacturing in the 1920s and became a real estate developer in Florida. In 1926, he founded the city of Opa-locka, naming it Opa-tisha-woka-locka (quickly shortened to Opa-locka), a Native American name that translates into the high land north of the little river with a camping place.
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 .