teaching assistant
US /ˈtiːtʃɪŋ əˌsɪstənt/
UK /ˈtiːtʃɪŋ əˌsɪstənt/
1.
a graduate student who assists a professor in teaching duties, such as grading papers, leading discussion sections, or conducting labs
:
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The teaching assistant helped students with their lab experiments.
•
She works as a teaching assistant for the psychology department.