a : to make firm, secure, or stationary b : to present a everlasting or last form to: as (one) : to change right into a steady compound or accessible sort microorganisms that repair nitrogen، يُرَكِّز، يُوَجِّهوَرْطَه، صُعوبَهيُثَبِّتُيُثَبِّتيُرَتِّب، يُعيِّن، يُحَدِّدPerfe