semesters is a form of:

Semester



noun
1.
(a halfyear course exterme in a school or university) ឆមាស (៦ខែ)
2.
(បច្ចេកទេស) ឆមាស
ENGLISH MEANING
noun
1.
A period of six months; especially, a term in a college or uneversity which divides the year into two terms.