18-letter words containing p, h, y, c, e, o
- psychogalvanometer — a type of galvanometer for detecting and measuring psychogalvanic currents.
- psychotechnologist — a specialist in psychotechnology
- psychotherapeutics — psychotherapy.
- pyromucic aldehyde — furfural.
- reverse psychology — (in nontechnical use) a method of getting another person to do what one wants by pretending not to want it or to want something else or something more.
- root canal therapy — endodontics.
- secondary syphilis — the second stage of syphilis, characterized by eruptions of the skin and mucous membrane.
- sling psychrometer — a psychrometer so designed that the wet-bulb thermometer can be ventilated, to expedite evaporation, by whirling in the air.
- spectroheliography — the process of obtaining an image of the sun in light of a particular wavelength, such as calcium or hydrogen, showing the distribution of the element over the surface and in the solar atmosphere, using a spectroheliograph
- spherical geometry — the branch of geometry that deals with figures on spherical surfaces.
- spotted flycatcher — a European woodland songbird, Muscicapa striata, with a greyish-brown streaked plumage: family Muscicapidae (Old World flycatchers)
- symphony orchestra — a large orchestra composed of wind, string, and percussion instruments and organized to perform symphonic compositions.
- systematic phoneme — a phonological unit in generative phonology representing an underlying form that takes into account the relationship between phonological patterns and morphological variation, as the unit underlying the second vowel in both derive and derivative.
- the encyclopedists — the writers of the French Encyclopedia (1751-72) edited by Diderot and d'Alembert, which contained the advanced ideas of the period
- the family compact — the ruling oligarchy in Upper Canada in the early 19th century
- the-cocktail-party — a play in verse (1950) by T. S. Eliot.
- to hold your peace — If you hold or keep your peace, you do not speak, even though there is something you want or ought to say.
- to watch your step — If someone tells you to watch your step, they are warning you to be careful about how you behave or what you say so that you do not get into trouble.
- vectorcardiography — a method of determining the direction and magnitude of the electrical forces of the heart.
- warehouse capacity — the amount of storage space in a warehouse