the size of the observable universe
scientists often work with phenomena that are not directly observable
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Phenotype refers to how one’s genetic makeup is expressed in observable traits, including eye color, height and blood type.—Gary Robbins, San Diego Union-Tribune, 3 Apr. 2025 Reasonable suspicion testing allows a supervisor to request a drug or alcohol test if there are observable and objective signs that an employee may be under the influence.—Johnny C. Taylor Jr., USA TODAY, 25 Mar. 2025 The cycling experience is like the observable universe.—Rob Reed, Forbes, 11 Mar. 2025 By shifting the focus from isolated incidents to observable patterns of behavior, organizations can foster a culture where feedback thrives.—Sandro Da Silva, Forbes, 11 Mar. 2025 See All Example Sentences for observable
Word History
Etymology
borrowed from Middle French & Latin; Middle French, "that must or can be observed," borrowed from Latin observābilis "capable of being observed," from observāre "to give attention to, watch carefully, observe" + -bilis "capable (of acting) or worthy of (being acted upon)" — more at -able
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