13-letter words containing a, n, t, h, r, o
- northeasterly — of or located in the northeast.
- northeastward — the northeast.
- northern cape — the largest but least populated province in South Africa, in the NW part of the country; created in 1994 from part of Cape Province: agriculture, mining (esp diamonds). Capital: Kimberley. Pop: 1 145 861 (2011 est). Area: 139 703 sq km (361 830 sq miles)
- northwestward — the northwest.
- on a par with — If you say that two people or things are on a par with each other, you mean that they are equally good or bad, or equally important.
- on the carpet — a heavy fabric, commonly of wool or nylon, for covering floors.
- on the market — an open place or a covered building where buyers and sellers convene for the sale of goods; a marketplace: a farmers' market.
- on the parish — receiving parochial relief
- on the razzle — out enjoying oneself or celebrating, esp while drinking freely
- on the square — a rectangle having all four sides of equal length.
- openheartedly — Alt form open-heartedly.
- opisthobranch — any gastropod mollusk of the order Opisthobranchia, as the sea slugs, sea butterflies, and sea hares, characterized by a vestigial or absent mantle and shell and two pairs of tentacles.
- oprahfication — the perceived increase in people’s desire to discuss their emotions or personal problems, attributed to the influence of confessional television programmes
- orchestrating — Present participle of orchestrate.
- orchestration — (uncountable) the arrangement of music for performance by an orchestra.
- organ whistle — a steam or air whistle in which the jet is forced up against the thin edge of a pipe closed at the top.
- organolithium — (organic chemistry) Describing any organic compound containing a carbon to lithium bond.
- organotherapy — the branch of therapeutics that deals with the use of remedies prepared from the organs of animals, as from the thyroid gland, the pancreas, or the suprarenal bodies.
- ornithischian — any herbivorous dinosaur of the order Ornithischia, having a pelvis resembling that of a bird. Compare saurischian.
- ornithomantic — relating to ornithomancy
- ornithophobia — Fear of birds.
- orthodiagonal — the axis in a crystal
- orthognathous — straight-jawed; having the profile of the face vertical or nearly so; having a gnathic index below 98.
- orthogonalise — to make (vectors, functions, etc.) orthogonal.
- orthogonality — (mathematics, statistics) the property of being orthogonal.
- orthogonalize — to make (vectors, functions, etc.) orthogonal.
- orthopinakoid — a crystalline plane
- overbreathing — hyperventilation
- overhand knot — a simple knot of various uses that slips easily.
- overhastiness — the condition of being overhasty
- overnight bag — a travel bag large enough to hold personal articles and clothing for an overnight trip.
- painted horse — paint (def 6).
- parasyntheton — a word formed by parasynthesis; for example, kind-hearted
- parental home — a school for problem children.
- parnell shout — a social occasion where each person in a group pays for his or her own entertainment or meal
- parthenocarpy — the production of fruit without fertilization of an egg in the ovary.
- parthenopaeus — a son of Hippomenes and Atalanta, and one of the Seven against Thebes.
- parthenospore — a spore developed without fertilization.
- parthian shot — a sharp, telling remark, act, gesture, etc., made in departing.
- patent holder — a person or company that holds a patent
- perchlorinate — to combine with the maximum proportion of chlorine.
- phallocentric — a doctrine or belief centered on the phallus, especially a belief in the superiority of the male sex.
- phantasmagory — phantasmagoria.
- pharyngectomy — excision of part or all of the pharynx.
- phenobarbital — a white, crystalline powder, C 1 2 H 1 2 N 2 O 3 , used as a sedative, a hypnotic, and as an antispasmodic in epilepsy.
- philanthropic — of, pertaining to, engaged in, or characterized by philanthropy; benevolent: a philanthropic foundation.
- phonautograph — a piece of equipment that records sound visually by detecting the sound waves and indicating them on a graph
- photo-sharing — the publishing of digital photographs on the internet
- photographing — a picture produced by photography.
- photoreaction — a chemical reaction that involves or requires light.