12-letter words containing p, y, t, h, o
- photobiology — the study of the effects of light on biological systems.
- photodynamic — the science dealing with light and its effects on living organisms.
- photogeology — the technique of interpreting geology from aerial photographs or compiling geologic maps therefrom.
- photoglyphic — of or relating to photoglyphy
- photolyzable — able to undergo photolysis
- photopolymer — a polymer or plastic that undergoes a change in physical or chemical properties when exposed to light.
- phototherapy — treatment of disease, especially of the skin, by means of light rays.
- phototypeset — to set (type matter) by phototypesetting
- phreatophyte — a long-rooted plant that absorbs its water from the water table or the soil above it.
- phrontistery — a place or establishment for thinking, studying, or learning
- phycologists — the branch of botany dealing with algae.
- phycoxanthin — a yellow pigment found in brown seaweeds and types of algae
- phylogenetic — the development or evolution of a particular group of organisms.
- physiologist — a specialist in physiology.
- physogastric — pertaining to the swollen, membranous abdomen of certain insects, especially termite and ant queens.
- physostomous — having the mouth and air bladder connected by an air duct.
- phytobenthos — microscopic plants that live in the bottom of the ocean
- phytobiology — the branch of biology dealing with plants.
- phytoclimate — the climate of a small area, as of confined spaces such as caves or houses (cryptoclimate) of plant communities, wooded areas, etc. (phytoclimate) or of urban communities, which may be different from that in the general region.
- phytogenesis — the origin and development of plants.
- phytographer — a botanist involved with plant description
- phytohormone — hormone (def 3).
- phytonadione — vitamin K1.
- phytophagous — herbivorous.
- phytophthora — any of a group of fungi of the genus Phytophthora, which cause a serious plant disease, especially affecting apple and pear trees and potatoes.
- phytotherapy — the use of plants and plant products for medicinal purposes
- play clothes — clothes that are suitable for playing in
- play through — to pass another foursome or group with their permission, while playing a round of golf
- plymouth bay — a small, well-protected bay on the coast of Massachusetts; the first permanent European settlement in New England; founded by the Pilgrim Fathers.
- polychaetous — of or relating to the genus Polychaeta
- polycythemia — an abnormal increase in the number and concentration of circulating red blood corpuscles
- polycythemic — relating to polycythemia
- polyethylene — a plastic polymer of ethylene used chiefly for containers, electrical insulation, and packaging.
- polygraphist — an instrument for receiving and recording simultaneously tracings of variations in certain body activities.
- polyhistoric — relating to a polyhistor
- polyphyletic — developed from more than one ancestral type, as a group of animals.
- polyphyodont — having many successive sets of teeth, as fishes and other lower vertebrates
- polyrhythmic — the simultaneous occurrence of sharply contrasting rhythms within a composition.
- polystichous — arranged in rows or series.
- polytheistic — pertaining to, characterized by, or adhering to polytheism, the doctrine that there is more than one god or many gods: Science thrived in the polytheistic culture of ancient Greece.
- polythiazide — a substance, C 1 1 H 1 3 ClF 3 N 3 O 4 S 3 , used as a diuretic in the management of edema and hypertension.
- polytriglyph — (in classical architecture) an intercolumniation of at least four triglyphs.
- polyurethane — a thermoplastic polymer containing the group NHCOO: used for padding and insulation in furniture, clothing, and packaging, and in the manufacture of resins for adhesives, elastomers, and fillers.
- posthumously — arising, occurring, or continuing after one's death: a posthumous award for bravery.
- posthypnotic — of or relating to the period after hypnosis.
- postsphygmic — of or relating to the pulse.
- praiseworthy — deserving of praise; laudable: a praiseworthy motive.
- prepsychotic — exhibiting behavior that indicates the approach of a psychotic reaction.
- proof theory — (logic) The branch of logic describing procedures for combining logical statements to show, by a series of truth-preserving transformations, that one statement is a consequence of some other statement or group of statements.
- prophylactic — defending or protecting from disease or infection, as a drug.