13-letter words containing t, r, o, h, l
- orthodiagonal — the axis in a crystal
- orthoepically — In terms of correct pronunciation.
- orthogonalise — to make (vectors, functions, etc.) orthogonal.
- orthogonality — (mathematics, statistics) the property of being orthogonal.
- orthogonalize — to make (vectors, functions, etc.) orthogonal.
- orthopaedical — Pertaining to orthopaedics; characteristic of orthopaedia.
- orthosilicate — a silicate mineral
- otherworldish — characterized by otherworldliness
- over the hill — a natural elevation of the earth's surface, smaller than a mountain.
- 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
- patent holder — a person or company that holds a patent
- perchlorinate — to combine with the maximum proportion of chlorine.
- petrochemical — a chemical substance obtained from petroleum or natural gas, as gasoline, kerosene, or petrolatum.
- petrophysical — relating to the analysis of the constitution and characteristics of rocks
- phallocentric — a doctrine or belief centered on the phallus, especially a belief in the superiority of the male sex.
- 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.
- phosphorylate — to introduce the phosphoryl group into (an organic compound).
- photo gallery — display of collected photographs
- photoallergic — photosensitive.
- photoelectric — pertaining to the electronic or other electric effects produced by light.
- photoelectron — an electron emitted from a system by the photoelectric effect.
- phototelegram — a telegram that is sent by means of phototelegraphy
- phraseologist — a person who treats of or is concerned with phraseology.
- phytoplankter — a minute organism which constitutes part of phytoplankton
- pistol shrimp — any common shrimp of the family Alphaeidae, distinguished by the snapping sound made by its enlarged claw.
- plain yoghurt — natural yoghurt, without added flavouring
- plant hormone — an organic chemical, as auxin, produced by plant cells and functioning at various sites to regulate growth, turning, metabolic processes, etc.
- platform shoe — a shoe with a platform.
- plethysmogram — the recording of a plethysmograph.
- plymouth rock — a rock at Plymouth, Massachusetts, on which the Pilgrims who sailed on the Mayflower are said to have stepped ashore when they landed in America in 1620.
- polyarthritis — arthritis occurring in more than one joint.
- polychromatic — having or exhibiting a variety of colors.
- poulard wheat — a Mediterranean wheat, Triticum turgidum, grown as a forage crop in the U.S.
- pre-adulthood — of or relating to the period prior to adulthood: preadult strivings for independence.
- private hotel — a residential hotel or boarding house in which the proprietor has the right to refuse to accept a person as a guest, esp a person arriving by chance
- prohibitively — serving or tending to prohibit or forbid something.
- prophetically — of or relating to a prophet: prophetic inspiration.
- psilanthropic — relating to psilanthropism
- pterylography — the description of the feather arrangement on birds
- pull together — to draw or haul toward oneself or itself, in a particular direction, or into a particular position: to pull a sled up a hill.
- pyrheliometer — an instrument for measuring the total intensity of the sun's energy radiation.
- pyrotechnical — of or relating to pyrotechnics.
- quadrillionth — a cardinal number represented in the U.S. by 1 followed by 15 zeros, and in Great Britain by 1 followed by 24 zeros.
- r-methodology — any statistical methodology in psychology that is contrasted with Q-methodology
- reel of three — (in Scottish country dancing) a figure-of-eight movement danced by three people
- reflectograph — a type of mechanical instrument used for communication with spirits or the dead
- rehabilitator — to restore to a condition of good health, ability to work, or the like.
- rehospitalize — to place in hospital again