[ ap-er-tom-i-ter ]
/ ˌæp ərˈtɒm ɪ tər /
an instrument for measuring the angular and numerical aperture of the objective lens of a microscope.
TAKE ROUND 2 OF OUR PSAT VOCABULARY QUIZ!
Here is our second set of teacher-selected PSAT vocabulary words. Do you know the meanings of these terms?
Question 1 of 10
Words nearby apertometer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020