term of art
noun [ C ] uk/ˌtɜːm əv ˈɑːt/ us/ˌtɝːm əv ˈɑːrt/ terms of art
专用术语
a special word or phrase used in relation to a particular subject or activity
The silicon carbide gems sparkle with more "brilliance", a jeweller's term of art, than genuine diamonds. 用珠宝商的专用术语来说，碳化硅宝石比真正的钻石闪耀着更多“光泽（brilliance）”。