Adjective: trillionth tril-yunth [N. Amer], tri-lee-unth [Brit]
- The ordinal number of one trillion in counting order
"The trillionth star in the galaxy was observed through the telescope"
- One part in a trillion equal parts
"The measurement was precise to one-trillionth of a meter";
- one-trillionth
Derived forms: trillionths
See also: ordinal
Type of: common fraction, simple fraction, vulgar fraction [Brit]
Encyclopedia: Trillionth