(engineering) A control device that converts nonhydraulic pressure into hydraulic pressure.

plural of lord and master

plural of four-master

plural of harbor master

plural of master status

plural of master tradesman

plural of Master of Science

(software engineering) In the Scrum framework, a facilitator of a developer team, who is accountable for removing impediments to the ability of the team to deliver the product goals and deliverables.

plural of Scrum master

(chess) A chess player of high ability but below the level of Grandmaster, as determined by FIDE.