15-letter words containing h, o, l, a
- ultramarathoner — a person who takes part in an ultramarathon
- ultramicrofiche — ultrafiche.
- ultrasonography — a diagnostic imaging technique utilizing reflected high-frequency sound waves to delineate, measure, or examine internal body structures or organs.
- unchronological — arranged in the order of time: a chronological list of events.
- uncopyrightable — not able to be copyrighted
- unphilosophical — not adhering to philosophical theory or principles
- venetian school — any of various groups of artists identified with Venice throughout the history of Italian art but most notably the painters of the 18th century, as Giovanni Battista Tiepolo, Francesco Guardi, and Antonio Canaletto.
- vice chancellor — a substitute, deputy, or subordinate chancellor.
- vice-chancellor — a substitute, deputy, or subordinate chancellor.
- vine phylloxera — a homopterous insect, Phylloxera vitifolia, typically feeding on vine juices
- walking holiday — a holiday on which you walk a lot, esp in the countryside
- washing-up bowl — plastic bowl used for washing dishes
- washington lily — a lily, Lilium washingtonianum, of the western coast of the U.S., having whorled leaves and fragrant, purple-spotted white flowers.
- washington palm — a palm tree, Washingtonia filifera, of California and Florida, having large fan-shaped leaves and small black fruits
- watch the clock — If you are watching the clock, you keep looking to see what time it is, usually because you are bored by something and want it to end as soon as possible.
- weather balloon — sounding balloon.
- wee small hours — the hours just after midnight
- wentworth scale — a scale for specifying the sizes (diameters) of sedimentary particles, ranging from clay particles (less than 1⁄256 mm) to boulders (over 256 mm)
- west hartlepool — a former borough, now part of Hartlepool, in Cleveland County, in NE England, at the mouth of the Tees.
- whalebone whale — any whale of the suborder Mysticeti, having plates of whalebone on the sides of the upper jaw for filtering plankton from the water.
- whaling station — a place where the carcases of whales were processed
- wheelchairbound — Confined to a wheelchair.
- white chocolate — a chocolate-type product made of milk and sugar that are cooked together until highly condensed and then mixed with cocoa butter.
- winter holidays — a period of rest from work or studies taken in winter
- withholding tax — that part of an employee's tax liability withheld by the employer from wages or salary and paid directly to the government.
- working holiday — trip combining vacation with job experience
- wreathed column — a column having a twisted or spiral form.
- xerographically — In a xerographic way; by xerography.
- xylotypographic — involving or pertaining to xylotypography
- yellow goatfish — a schooling goatfish, Mulloidichthys martinicus, inhabiting the Atlantic Ocean from Florida to Panama.
- yin-yang school — a school of ancient Chinese philosophers who interpreted history in terms of the influence of the seasons and of five elements: earth, wood, metal, fire, and water.
- yorkshire dales — the valleys of the rivers flowing from the Pennines in W Yorkshire: chiefly Ribblesdale, Swaledale, Nidderdale, Wharfedale, and Wensleydale; tourist area
- zoogeographical — Pertaining to zoogeography.
- zoophytological — of or relating to zoophytology
- zygophyllaceous — belonging to the Zygophyllaceae, the caltrop family of plants.