Meaning of QUAD in English

n. room at a hotel for four people; (Slang) quadruplet, one of four siblings born from one pregnancy; (in Printing) quadrat, block of type with less height than other letters used to create a space between words or letters; (Anatomy) quadriceps muscle; (Computers) quarter of a byte, 2 bits

Explanatory English dictionary bed edition.      Толковый словарь английского языка Редакция bed.