approximation

英[ə,prɒksɪ'meɪʃn] 美[ə'prɑksə'meʃən]

1. an approximate calculation of quantity or degree or worth;

"an estimate of what it would cost"

"a rough idea how long it would take"

2. the quality of coming near to identity (especially close in quantity)

3. an imprecise or incomplete account;

"newspapers gave only an approximation of the actual events"

4. the act of bringing near or bringing together especially the cut edges of tissue