13-letter words containing p, y, o, r, h, e
- spectrography — a spectroscope for photographing or producing a representation of a spectrum.
- speleotherapy — a form of treatment for asthma sufferers that takes place in clinics in disused mines, in which the air is free of pollen, dust mites, and the other irritants that provoke an allergic reaction; used to reduce the risk of heart disease
- spermatophyte — any of the Spermatophyta, a primary division or group of plants comprising those that bear seeds.
- spherocytosis — the condition of having spherocytes
- spheroidicity — a spheroidal state or form.
- steganography — the practice of concealing messages in such a way that only the sender and the recipient know that there is a message
- sulphonylurea — an antidiabetic drug used in treating type II diabetes, which acts by stimulating the production of insulin in the pancreas
- tapestry moth — carpet moth.
- thermotherapy — treatment of disease by means of moist or dry heat.
- thysanopteran — Also, thysanopterous. belonging or pertaining to the insect order Thysanoptera, comprising the thrips.
- thysanopteron — thysanopteran.
- topochemistry — the study of reactions that only occur at specific regions in a system
- tracheophytes — any plant of the former division Tracheophyta, comprising all the vascular plants.
- typhoid fever — Also called typhoid fever. an infectious, often fatal, febrile disease, usually of the summer months, characterized by intestinal inflammation and ulceration, caused by the typhoid bacillus, which is usually introduced with food or drink.
- uprighteously — in an upright or moral manner