> as lemmas
semi-reflection
semi-reflection n. 
/ˌsɛˌmaɪriˈflɛkʃ(ə)n/, /ˌsɛmirəˈflɛkʃ(ə)n/, /ˌsɛmiriˈflɛkʃ(ə)n/
Brit. /ˌsɛmɪrᵻˈflɛkʃn/
, /ˌsɛmɪrᵻˈflɛkʃn/U.S. /ˌsɛˌmaɪrəˈflɛkʃ(ə)n/
, /ˌsɛˌmaɪrəˈflɛkʃ(ə)n//ˌsɛˌmaɪriˈflɛkʃ(ə)n//ˌsɛmirəˈflɛkʃ(ə)n//ˌsɛmiriˈflɛkʃ(ə)n/ΚΠ
1976 Z. Knittl Optics of Thin Films ix. 374 A common feature of many synthesis problems is the condition for 1(ω2) to be flat in a certain range about ω = 0 and at a certain level. Depending on this level we have the anti~reflection or the semireflection problem.
<
as lemmas