The meaning of the Acronym PCA is...

PCA is

• Positive Control Airspace
• Physical Configuration Audit

More Meanings For PCA:

• Programmable Counter Array
• Probabilistic Cellular Automata
• Physical Configuration Audit
• Physical Configuration Audit
• Protective Connectiing Arrangement
• Pyrrolidone Carboxylic Acid
• Printed Circuit Assembly
• Processor Controlled Amplitude
• Principal Component Analysis
• Performance Coach Award
• Professional Chess Association
• Pony Club Association
• Pressure Compensating Aerator
• Primary Correlation Analysis
• Power Cost Adjustment

PCA is also in:

• Assembly
• Awards & Medals
• Chemistry
• Chess
• Electronics
• General
• Hobbies
• Mathematics
• Software
• Telecom
• Unfiled