Ternary

ternary \ˈtər-nə-rē\ adjective: 1 a. of, relating to, or proceeding by threes, b. having three elements, parts, or divisions, c. arranged in threes {ternary petals}, 2. using three as the base {a ternary logarithm}, 3 a. being or consisting of an alloy of three elements, b. of, relating to, or containing three different elements, atoms, radicals, or groups {sulfuric acid is a ternary acid}, 4. third in order or rank

Etymology: Middle English, from Latin ternarius, from terni three each

Every word can’t be exciting; ternary is one that’s boring, but important.