scle·ro·sis
noun/skləˈrəʊsɪs/
/skləˈrəʊsɪs/
[uncountable] (medical)- a medical condition in which soft tissue in the body becomes hard
身体软组织变硬的医疗状况 Word Originlate Middle English (originally denoting a hard external tumour): via medieval Latin from Greek sklērōsis, from sklēroun ‘harden’.