Microscopic organisms in ocean water form the base of the marine food chain, supporting all larger life forms.
海水中的微生物构成了海洋食物链的基础，支撑着所有更大的生命形式。
Tardigrades, microscopic animals also known as water bears, can survive extreme conditions including near-total dehydration, radiation levels lethal to most life, and even brief exposure to the vacuum of space.
From a Central Ideas and Details question · Information and Ideas
Redwood trees, among the tallest living organisms on Earth, draw much of their water not from their roots alone but by directly absorbing moisture from coastal fog through microscopic pores in their needles, a process especially important during California's dry summer months.
From a Central Ideas and Details question · Information and Ideas
Which choice best defines “microscopic”?
D — So small as to be visible only with a microscope. “microscopic” means so small as to be visible only with a microscope.
Which word means “so small as to be visible only with a microscope”?
B — microscopic. “microscopic” means so small as to be visible only with a microscope.
microscopic — so small as to be visible only with a microscope. In Chinese: 微小的，显微镜下可见的.
microscopic is pronounced /ˌmaɪkrəˈskɒpɪk/.
Microscopic organisms in ocean water form the base of the marine food chain, supporting all larger life forms. (海水中的微生物构成了海洋食物链的基础，支撑着所有更大的生命形式。)
minuscule, tiny, infinitesimal — all close in meaning to microscopic (so small as to be visible only with a microscope).
macroscopic, enormous — each the opposite of microscopic (so small as to be visible only with a microscope).
Yes. microscopic 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.