(of educational material) designed to be used by students in elementary school or high school
elhi in American English
(ˈelhai)
adjective
elementary and high-school
the elhi textbook market
Word origin
[1945–50; el(ementary) + hi(ghschool)]This word is first recorded in the period 1945–50. Other words that entered Englishat around the same time include: fail-safe, on-line, regression analysis, synchronized swimming, taxi squad