12-letter words containing e, x, h, r
- propoxyphene — Pharmacology. a nonnarcotic analgesic, C 2 2 H 2 9 NO 2 .
- protosynthex — A query system for English text.
- purchase tax — a sales tax on nonessential and luxury goods.
- rich mixture — A rich mixture is a fuel/air mixture containing an excessive proportion of fuel.
- sixth former — student: 16-18
- sixth-grader — a pupil in their sixth US school year after kindergarten, who is usually around 11 or 12 years old
- tetrahydroxy — (of a molecule) containing four hydroxyl groups.
- the fair sex — women collectively
- vortex depth — The vortex depth is the depth below an impeller at which its influence can still be seen in a mixed fluid.
- x chromosome — a sex chromosome of humans and most mammals that determines femaleness when paired with another X chromosome and that occurs singly in males.
- x-chromosome — a sex chromosome of humans and most mammals that determines femaleness when paired with another X chromosome and that occurs singly in males.
- xanthopterin — a yellow pigment, C6H5N5O2, found in some butterfly or moth wings or in the urine of mammals
- xiphisternum — The lowest part of the sternum; the xiphoid process.