Wiktionary
secondary modern
n. (context schools British English) In the UK from 1944 to 1970s, a secondary school for children who had failed the eleven plus examination.
Usage examples of "secondary modern".
It was much like a scene from some old geography book in Harry's secondary modern school at Harden.
Enderby had heard of secondary modern schools and now assumed that these flat-eyed little monsters must represent their end-product.