The S3 is the battalion's operations and training officer. A member of the battalion's command staff, an S3 typically holds the rank of major or lieutenant colonel in the Army. The S3 is also the battalion training officer, ensuring the ongoing military education of the battalion's personnel.
The Apicomplexa (also called Apicomplexia) are a large phylum of parasitic protists. Most of them possess a unique form of organelle that comprises a type of plastid called an apicoplast, and an apical complex structure.
Application Programming Interface - API. DEFINITION of 'Application Programming Interface - API'. An interface or go-between that enables a software program to interact with other software. In the context of forex trading, an API refers to the interface or platform that enables your platform to connect with the market. APIs have multiple features that facilitate information sharing, including real-time forex price quotations, trade execution and order and trade confirmations.