ther ‧ mo ‧ plas ‧ tic /ˌθɜːməʊˈplæstɪk◂ $ ˌθɜːrmə-/ BrE AmE noun [uncountable and countable]
technical a plastic that is soft and bendable when heated but hard when cold
ther ‧ mo ‧ plas ‧ tic /ˌθɜːməʊˈplæstɪk◂ $ ˌθɜːrmə-/ BrE AmE noun [uncountable and countable]
technical a plastic that is soft and bendable when heated but hard when cold
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012