10-letter words containing p, o, n, t, a
- transposon — a genetic element that can move from one site in a chromosome to another site in the same or a different chromosome and thus alter the genetic constitution of the organism
- treponemal — any of several anaerobic spirochetes of the genus Treponema, certain species of which are parasitic in and pathogenic for humans and warm-blooded animals.
- tritanopia — a defect of vision in which the retina fails to respond to blue and yellow.
- trollopian — Anthony, 1815–82, English novelist.
- tropaeolin — any of a number of orange or yellow azo dyes of complex molecular structure.
- tryptophan — an essential amino acid, (C 8 H 6 N)CH 2 CH(NH 2)COOH, colorless, crystalline, and aromatic, released from proteins by tryptic digestion and a precursor of serotonin. Symbol: W. Abbreviation: Trp;
- unoperated — to work, perform, or function, as a machine does: This engine does not operate properly.
- unoptional — left to one's choice; not required or mandatory: Formal dress is optional.
- unpastoral — not used or suitable for pasture
- unprobated — Law. the official proving of a will as authentic or valid in a probate court.
- usurpation — an act of usurping; wrongful or illegal encroachment, infringement, or seizure.
- utopianism — the views or habit of mind of a utopian; impracticable schemes of political or social reform.
- utopianist — the views or habit of mind of a utopian; impracticable schemes of political or social reform.
- utopianize — to idealize; to make utopian
- vapulation — the act of beating or whipping
- waitperson — a waiter or waitress.
- weak point — an area of weakness
- xanthopsia — A visual defect, a form of chromatopsia in which everything appears yellow.
- yoga pants — pants made of a stretchable knit fabric, worn as exercise or casual wear: slim-fitting yoga pants with a flared leg.
- zoanthropy — a mental disorder in which one believes oneself to be an animal.
- zone plate — a plate or screen with alternating opaque and transparent concentric rings that focus light by diffraction.
- zygopteran — belonging or pertaining to the suborder Zygoptera, comprising the damselflies.