15-letter words containing o, p, a, h
- thraco-phrygian — a hypothetical branch of Indo-European implying a special genetic affinity between the meagerly attested Thracian and Phrygian languages.
- to pack a punch — If something packs a punch, it has a very powerful effect.
- topographic map — a map showing topographic features, usually by means of contour lines.
- trainspotterish — obsessed with trivial details, esp of a subject generally considered uninteresting
- typographically — of or relating to typography.
- ultrasonography — a diagnostic imaging technique utilizing reflected high-frequency sound waves to delineate, measure, or examine internal body structures or organs.
- unchoreographed — not choreographed; not pre-arranged or pre-prepared; unplanned
- uncopyrightable — not able to be copyrighted
- unphilosophical — not adhering to philosophical theory or principles
- unsophisticated — not sophisticated; simple; artless.
- vanishing point — a point of disappearance, cessation, or extinction: His patience had reached the vanishing point.
- vine phylloxera — a homopterous insect, Phylloxera vitifolia, typically feeding on vine juices
- washing-up bowl — plastic bowl used for washing dishes
- washington palm — a palm tree, Washingtonia filifera, of California and Florida, having large fan-shaped leaves and small black fruits
- weatherproofing — Present participle of weatherproof.
- west hartlepool — a former borough, now part of Hartlepool, in Cleveland County, in NE England, at the mouth of the Tees.
- whip into shape — to bring by vigorous action into the proper or desired condition
- xerographically — In a xerographic way; by xerography.
- xeroradiography — an x-ray utilizing a specially coated plate that allows a picture to be developed without the use of liquid chemicals.
- xylotypographic — involving or pertaining to xylotypography
- zoogeographical — Pertaining to zoogeography.
- zoophytological — of or relating to zoophytology
- zygophyllaceous — belonging to the Zygophyllaceae, the caltrop family of plants.