13-letter words containing t, h, o, r
- xanthochroous — light-skinned and fair-haired
- xerophthalmia — abnormal dryness of the eyeball characterized by conjunctivitis, caused by a deficiency of tears and attributed to a lack of vitamin A.
- xerophthalmic — Of or pertaining to xerophthalmia.
- xiphiplastron — the fourth lateral plate of a turtle's plastron
- yellowthroats — Plural form of yellowthroat.
- youth culture — the activities and behaviour associated with young people
- zinjanthropus — the genus to which Australopithecus boisei was formerly assigned.