13-letter words containing n, o, t, x
- titanic oxide — a white, water-insoluble powder, TiO 2 , used chiefly in white pigments, plastics, ceramics, and for delustering synthetic fibers.
- unexceptional — not exceptional; not unusual or extraordinary.
- unexplanatory — serving to explain: an explanatory footnote.
- vercingetorix — died 45? b.c, Gallic chieftain conquered by Caesar.
- victorian box — a tree, Pittosporum undulatum, of Australia, having shiny, wavy-margined, oblong leaves and fragrant clusters of yellowish flowers.
- wilcoxon test — a statistical test for the relative size of the scores of the same or matched subjects under two experimental conditions by comparing the distributions for positive and negative differences of the ranks of their absolute values
- xanthochroism — a condition in certain animals, esp aquarium goldfish, in which all skin pigments other than yellow and orange disappear
- xanthochroous — light-skinned and fair-haired
- xenoestrogens — Plural form of xenoestrogen.
- xiphiplastron — the fourth lateral plate of a turtle's plastron
- zooxanthellae — any of various symbiotic yellow-green or yellow–brown algae in the cytoplasm of certain radiolarians and marine invertebrates.