They learned to measure and count in better ways, and cracked the codes of physics, chemistry, and biology.
On the cracked veranda, her intensive care, the newest babies fail to thrive.
In a number of interviews over the years, Kelly admitted to Spoto that royalty was not all that it was cracked up to be.
As speaker of the Florida House, he had bottled up six bills that would have cracked down on illegal immigration.
Well, it watched for a couple of days, at least—until Iran cracked down on the media.
The stones that composed them looked now enormous, cracked and unhewn.
It whirled, hummed in the air, and then cracked on the shoulders of Andrew.
Within the chapel, drops from the cracked roof still fell in succession, like invisible fingers playing scales along the boards.
As soon as the skins of the berries have cracked, add the sugar.
Where the moonlight struck the western wall of the gully was a bed of cracked, sun-baked clay.
mid-15c., past participle adjective from crack (v). Meaning "mentally unsound" is 17c. (cf. crack-brain "crazy fellow"). The equivalent Greek word was used in this sense by Aristophanes.
"split, opening," 14c., from crack (v.). Meaning "try, attempt" first attested 1836, probably a hunting metaphor, from slang sense of "fire a gun." Meaning "rock cocaine" is first attested 1985. The superstition that it is bad luck to step on sidewalk cracks has been traced to c.1890. Adjectival meaning in "top-notch, superior" is slang from 1793 (e.g. a crack shot).
Crazy; eccentric: You're cracked if you think I'll stay now (1692+)
[all senses are ultimately echoic; narcotics sense fr the sound of breaking crystals or the cracking sound the crystals make when smoked]