the usually round opening in the iris that contracts and expands in order to regulate the amount of light entering the eye
how do we use it?
when we first entered the cave, it seemed pitch dark, but we could see better after our pupils adjusted to the dim light.
word quiz
the word "pupil" got its start when ancient romans thought they saw something in people's eyes that today you can see in a toy store. which toy-store item do you think played a role in the history of "pupil"?
a. a teddy bear
b. a bicycle
c. a doll
d. a model truck
key
[a]
when you look into another person's eye, you can sometimes see a small reflection of yourself. that reflection reminded the ancient romans of the toy named in answer c, a doll. they called the part of the eye where they saw the reflection the "pupilla." that word comes from the word "pupa," which meant "doll" or "girl." in latin, "pupilla" was also used for a little girl who was in the care of a guardian. a little boy in the same situation was called a "pupillus." those two latin words gave us the other english "pupil," meaning "a young student in the care of a tutor or in school."
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