The clearness of the microscope's image allowed the biologist to distinguish individual cell membranes without staining.
显微镜图像的清晰度使生物学家无需染色就能分辨单个细胞膜。
Which choice best defines “clearness”?
B — The quality of being easy to see or understand. “clearness” means the quality of being easy to see or understand.
Which word means “the quality of being easy to see or understand”?
D — clearness. “clearness” means the quality of being easy to see or understand.
clearness — the quality of being easy to see or understand. In Chinese: 清晰，明了.
clearness is pronounced /ˈklɪrnəs/.
The clearness of the microscope's image allowed the biologist to distinguish individual cell membranes without staining. (显微镜图像的清晰度使生物学家无需染色就能分辨单个细胞膜。)
clarity, lucidity, precision — all close in meaning to clearness (the quality of being easy to see or understand).
obscurity, ambiguity — each the opposite of clearness (the quality of being easy to see or understand).
Yes. clearness is on the SAT Prep Basic list — the everyday academic words the SAT assumes you already have. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.