A lens screwed onto the front of an existing camera lens to give a wider field of view.

Alternative form of angiotensin converting enzyme

plural of angiotensin-converting enzyme

(endocrinology) an enzyme attached to the membrane of cells in various organs and lowers blood pressure by catalyzing the hydrolysis of angiotensin II into angiotensin (1-7)

(endocrinology) a central component of the renin-angiotensin system (RAS), which controls blood pressure by regulating the volume of fluids in the body

(electronics) A device for digitizing analog signals of very high bandwidth, effectively slowing down the original signal in time (or compressing its bandwidth) before it can be digitized by a slow electronic ADC.

plural of time stretch analog-to-digital converter

Alternative form of converter

plural of convertor

Any of several forms of aircraft capable of both vertical takeoff and landing, and of normal forward flight; usually has variable geometry wings that can rotate