[con.stant] adj [ME, fr. MF, fr. L constant-, constans, fr. prp. of constare to stand firm, be consistent, fr. com- + stare to stand--more at stand] (14c) 1: marked by firm steadfast resolution or faithfulness: exhibiting constancy of mind or attachment
2: invariable, uniform
3: continually occurring or recurring: regular syn see faithful, continual -- con.stant.ly adv
[2]constant n (1832): something invariable or unchanging: as a: a number that has a fixed value in a given situation or universally or that is characteristic of some substance or instrument b: a number that is assumed not to change value in a given mathematical discussion c: a term in logic with a fixed designation