adj. Of, relating to, or derived from technique.adj. Having special skill or practical knowledge especially in a mechanical or scientific field: a technical adviser. adj. Used in or peculiar to a specific field or profession; specialized: technical terminology. adj. Belonging or relating to a particular subject: technical expertise. adj. Of, relating to, or involving the practical, mechanical, or industrial arts or the applied sciences: a technical school. adj. Abstract or theoretical: a technical analysis. adj. Of, relating to, or employing the methodology of science; scientific.adj. According to principle; formal rather than practical: a technical advantage. adj. Industrial and mechanical; technological.adj. Relating to or based on analysis of market indicators, such as trading volume and fluctuations in securities prices, rather than underlying economic conditions such as corporate earnings, inflation, and unemployment: a technical correction in the stock market. n. Sports A technical foul.