(American spelling, biochemistry, steroids, pharmacology) A natural estrogenic hormone that is a ketone C₁₈H₂₂O₂ found in the body chiefly as a metabolite of and less potent than estradiol, that is...

Looking sideways, as though warily.

(physics) proton and antiproton (used attributively to describe a collision or other interaction of these two particles)

A city, the county seat of Jackson County, in southwest Oklahoma, United States.