Someone who makes a formal application or request. In the case of court applications, an applicant was formerly called a plaintiff.
Found on http://www.encyclo.co.uk/local/20912
Ap'pli·cant noun [ Latin applicans , present participle of applicare . See Apply .] One who apples for something; one who makes request; a petitioner. « The applicant for a cup of water. Plumtre. » « The court require the applicant to app... Found on http://www.encyclo.co.uk/webster/A/108
A single organization or a consortium of organizations that seek to become an ONC-Authorized Certification Body (ONC-ACB) by requesting and subsequently submitting an application for ONC-ACB status to the National Coordinator. Found on https://www.encyclo.co.uk/local/22555