Having very good eyesight

(cricket, tennis) A system, using six static television cameras and sophisticated computing, to track the path of the ball in flight.

(military) Acronym of Improved homing-all-the-way killer, a type of missile.

the laughing falcon

Alternative form of chickenhawk

The New Zealand falcon, Falco novaeseelandiae, formerly also Hieracidea novae-hollandiae.

The American kestrel or American sparrowhawk (Falco sparverius), a small falcon found in North and South America that preys on grasshoppers and small animals.

The radiation presumed to be given off by a black hole by quantum mechanical processes.

(simile) With particular vigilance or attention, implying sharp vision.

Any moth of the family Sphingidae.