open enrollment noun
Learner's definition of OPEN ENROLLMENT
[noncount] chiefly US
1
: a policy or process by which parents may send their children to a different public school than the one in their own community公立学校的开放性招生制 — called also open admission
2
: a period of time during which you can join something as a member or participant : a period of time during which you can enroll in something开放注册期间