To observe the nesting birds without alarming them, the researchers disguised their equipment inside a screen of branches.
为了观察筑巢的鸟类又不惊扰它们，研究者把设备伪装在一道树枝屏障里。
Certain species of spider practice a form of chemical camouflage, coating their bodies in scent compounds that mimic the pheromones of the ants they live among; this disguise allows the spiders to move freely through ant colonies without triggering the ants' usual aggressive defenses.
From a Central Ideas and Details question · Information and Ideas
Which choice best defines “disguise”?
C — To change the appearance to hide identity. “disguise” means to change the appearance to hide identity.
Which word means “to change the appearance to hide identity”?
D — disguise. “disguise” means to change the appearance to hide identity.
disguise — to change the appearance to hide identity. In Chinese: 伪装.
disguise is pronounced /dɪsˈɡaɪz/.
To observe the nesting birds without alarming them, the researchers disguised their equipment inside a screen of branches. (为了观察筑巢的鸟类又不惊扰它们，研究者把设备伪装在一道树枝屏障里。)
camouflage, conceal, mask — all close in meaning to disguise (to change the appearance to hide identity).
reveal, expose — each the opposite of disguise (to change the appearance to hide identity).
Yes. disguise 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.