12-letter words containing x, s, t, r
- transfer tax — a transaction fee imposed on the transfer of title to property
- trophallaxis — (among social insects) the exchange of nutriments or other secretions between members of a colony.
- twenty-sixer — a liquor bottle of around 26 ounces (0.750 litre) capacity
- x consortium — A vendor consortium supporting development, evolution and maintenance of the X Window System. The X Consortium is an independent, not-for-profit company. It was formed in 1993 as the successor to the MIT X Consortium, a research group of the MIT Laboratory for Computer Science.
- xenoestrogen — (biochemistry) A xenohormone that imitates estrogen.
- xiphisternum — The lowest part of the sternum; the xiphoid process.