Definitions
a small puncture that might have been made by a pin
Word origin
From pin + hole.
Used in a sentence
“These [the eyes of the nautilus] are the simplest eyes of any large living animal -- lensless 'pinholes' that project a hazy and rather dim image onto its retinas.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Tiny opening”7 letters
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