PCA

Definitions

1. Abbreviation of Proto-Central Algonquian.
   abbreviation, alt-of
2. Abbreviation of propulsion controlled aircraft (system/unit), an aircraft with a control system with two or more engines arrayed abreast, allowing descent, ascent, turns by adjusting the throttle control to the engines (sometimes used attributively).
   abbreviation, alt-of
3. Abbreviation of Posse Comitatus Act, the U.S. law called "Posse Comitatus Act", 20 Stat. 152 aka 18 U.S.C. § 1385.
   US, abbreviation, alt-of
4. Abbreviation of principal components analysis.
   abbreviation, alt-of
5. Initialism of Progressive Citizens of America.
   US, abbreviation, alt-of, historical, initialism
6. Abbreviation of patient-controlled analgesia; palliator.
   abbreviation, alt-of
7. Initialism of posterior cerebral artery.
   abbreviation, alt-of, initialism
8. Initialism of printed circuit assembly.
   abbreviation, alt-of, initialism

Equivalents

Examples

“The PCA was demonstrably a Communist-front organization, and most of the Hollywoodites whom it rallied to its support⟳ were members of the Communist Party, some of them having been notorious as such for many years.”

CEFR level