The prefix nano stands for one-billionth, and one-billionth of just about any single thing is way too small for the human eye to see.
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The prefix nano stands for one-billionth, and one-billionth of just about any single thing is way too small for the human eye to see.
Source: tatoeba (10935197)
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.