> as lemmas
over-concentration
over-concentration n.
Brit. 
/ˌəʊvəkɒns(ɛ)nˈtreɪʃn/
, /ˌəʊvəkɒns(ɛ)nˈtreɪʃn/U.S. /ˌoʊvərˌkɑnsənˈtreɪʃən/
/ˌoʊvərˌkɑnsənˈtreɪʃən/ΚΠ
1877 Examiner 8 Dec. 1548/2 Over-concentration may be damaging to the balance of his mind.
1990 Forbes 22 Jan. 68/3 Robertson admits to some small worries about overconcentration in the retailers.
<
as lemmas