Adjective
WVR (not comparable)
Initialism of within visual range.
If the missile is fired at short range, within visual range (WVR) or the near BVR, it can use its active seeker just after launch, making the missile truly "fire and forget". Source: Internet
Though with its limited radar it does not have a strong BVR capability, it can hold its own in the WVR mode even today, over 50 years after its original introduction. Source: Internet