1. pushbutton - Noun
2. pushbutton - Adjective
pushbutton (not comparable)
Alternative spelling of push-button
pushbutton (plural pushbuttons)
Alternative spelling of push-button
Automatic aperture control is provided with the newer Nikon digital SLR cameras; with some earlier cameras, the lenses offer preset aperture control by means of a pushbutton that controls the electromagnetic diaphragm. Source: Internet
Initial pushbutton designs employed levers, so that each button activated two contacts. Source: Internet
Until the 1960s dials used almost exclusively the rotary technology, which was replaced by dual-tone multi-frequency signaling (DTMF) with pushbutton telephones (A4). Source: Internet
The Nikon PC Micro-Nikkor 85 mm f /2.8D lens incorporates a mechanical pushbutton that sets working aperture when pressed and restores full aperture when pressed a second time. Source: Internet