equilateral

adj

1. (not-comparable)Having all the sides equal.

   “Kissinger had wanted to keep an “equilateral” distance between the US, USSR and China. Under Carter, they became de facto partners.”

2. (not-comparable)Having all the faces equal.
3. (not-comparable)Having the two sides equal, as a surface divisible by a longitudinal median line into two halves of the same form.
4. (not-comparable)Having all the convolutions of the shell in one plane, chiefly of foraminifers.

noun

1. A side exactly corresponding, or equal, to others.
2. A figure having all its sides equal.