battle sight
— Navneord
– Engelsk
~ an arrangement of sights that makes possible the rapid aiming of a firearm at short ranges
Babinski sign
— Navneord
– Engelsk
~ extension upward of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front; normal in infants under the age of two years but a sign of brain or spinal cord injury in older persons
background signal
— Navneord
– Engelsk
~ extraneous signals that can be confused with the phenomenon to be observed or measured; "they got a bad connection and could hardly hear one another over the background signals"