Plain English Meaning
A climb where you pick a target airspeed and keep the needle on that number the whole way up. You raise or lower the nose to hold that speed, and you don't worry about hitting a specific climb rate.
Full Definition
A climb flown by holding a selected airspeed constant while allowing the rate of climb and pitch attitude to vary as needed. The pilot uses pitch to maintain the chosen airspeed and adjusts power as required, accepting whatever climb rate results.
Context Anchor
Used when entering or holding a climb by reference to the flight instruments, such as during , departures, or changes.