noun. a mathematician specializing in geometry.
Example sentences of the word geometer
1. Noun, singular or mass
When they’ve developed enough, inchworms get a hard shell around them, called pupae, that protect them while they transform into adult geometer moths.
This isn’t too surprising since they come from a family that has about 35,000 different species in it worldwide; around 1,400 kinds of geometer moths live in North America.