hawk's-eye

[ hawks-ahy ]

/ ˈhɔksˌaɪ /

a dark-blue chatoyant quartz formed by the silicification of crocidolite, used for ornamental purposes. Compare tiger's-eye(def 1).

Origin of hawk's-eye

First recorded in 1675–85

For me, I signed on to The Avengers 1-3 and then Hawk-Eye, in case they want to do a Hawk-Eye spin-off.

Jeremy Renner Opens Up About Marriage, His Problems with the Media, and the Future of Hawk-Eye |Marlow Stern |September 29, 2014 |DAILY BEAST
When she said “bold and brave,” she looked right at Hawk-Eye.

The Cave Twins |Lucy Fitch Perkins
Duncan was about to fire, but Hawk-eye, roaring with laughter, stayed his arm.

The Worlds Greatest Books |Arthur Mee, J. A. Hammerton, Eds.
“We crept down the bluffs as quietly as snakes,” went on Hawk-Eye, when everybody was still again.

The Cave Twins |Lucy Fitch Perkins

It may be that Hawk-Eye was a little pleased at their courage in following them.

The Cave Twins |Lucy Fitch Perkins
“There is more to be learned about the hunting,” said Hawk-Eye.

The Cave Twins |Lucy Fitch Perkins

Hawk-Eye

trademark an optical ball-tracking device used as an aid to commentators in certain sports, and as an officiating tool in major tennis tournaments

hawk's-eye

a dark blue variety of the mineral crocidolite: a semiprecious gemstone