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hypermature
hypermature adj. 
/ˌhʌɪpəməˈtjʊə/, /ˌhʌɪpəməˈtʃɔː/, /ˌhʌɪpəməˈtjɔː/, /ˌhaɪpərməˈtʃʊ(ə)r/, /ˌhaɪpərməˈt(j)ʊ(ə)r/ Ophthalmology applied to a cataract in its final stage (see quots.).
Brit. /ˌhʌɪpəməˈtʃʊə/
, /ˌhʌɪpəməˈtʃʊə//ˌhʌɪpəməˈtjʊə//ˌhʌɪpəməˈtʃɔː//ˌhʌɪpəməˈtjɔː/U.S. /ˌhaɪpərməˈtʃər/
, /ˌhaɪpərməˈtʃər//ˌhaɪpərməˈtʃʊ(ə)r//ˌhaɪpərməˈt(j)ʊ(ə)r/ΘΚΠ
the world > health and disease > ill health > a disease > disorders of eye > [adjective] > cataract > stage of
immature1746
mature1826
hypermature1897
1897 Lippincott's Med. Dict. 494/1 Hypermature cataract, the final stage of progressive cataract, in which the lens substance breaks down, shrinking into a hard mass or becoming liquefied.
1962 D. G. Cogan in A. Pirie Lens Metabolism 294 When the entire cortex becomes liquefied the cataract is said to have become hypermature.
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