also: エスカレータこう
noun
escalator school; private school with automatic advancement
Colloquial term for a private school (often a combined kindergarten-to-university institution) where students can progress through levels without taking entrance exams. The name comes from the idea of moving up automatically like an escalator.
See also: エスカレーター学校 (エスカレーターがっこう)
あの大学はエスカレーター校で、付属の高校からほぼ全員が進学できる。
That university is an escalator school, so almost everyone from its attached high school can advance.
エスカレーター校に通うと、受験のストレスが少ないと言われる。
It's said that attending an escalator school reduces the stress of entrance exams.
An affiliated school; not all affiliated schools guarantee automatic advancement like an escalator school.
From エスカレーター (escalator) + 校 (school), referring to the automatic upward progression without exams.