The teacher asked the students to diffuse the ink across the filter paper to observe how the pigments separated.
老师让学生们将墨水扩散到滤纸上，以观察颜料如何分离。
Which choice best defines “diffuse”?
C — To spread out; wordy and unfocused.. “diffuse” means To spread out; wordy and unfocused..
Which word means “To spread out; wordy and unfocused.”?
C — diffuse. “diffuse” means To spread out; wordy and unfocused..
diffuse — To spread out; wordy and unfocused.. In Chinese: 扩散；冗长散漫的.
diffuse is pronounced //dɪˈfjuːz//.
The teacher asked the students to diffuse the ink across the filter paper to observe how the pigments separated. (老师让学生们将墨水扩散到滤纸上，以观察颜料如何分离。)
scatter, disperse, spread — all close in meaning to diffuse (To spread out; wordy and unfocused.).
concentrate, gather — each the opposite of diffuse (To spread out; wordy and unfocused.).
Yes. diffuse is on the SAT Prep Difficult list — the higher-register words that decide the hard questions. 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.
dif(散) + fus(流) → 四散流开。