13-letter words containing h, y, p, o, g
- psychotogenic — a substance that causes a psychotic reaction.
- pterylography — the description of the feather arrangement on birds
- rhyparography — the painting of still-life, esp of sordid or unpleasant subjects
- rotary plough — an implement with a series of blades mounted on a power-driven shaft, used to break up soil or weeds
- spectrography — a spectroscope for photographing or producing a representation of a spectrum.
- sphingomyelin — any of the class of phospholipids occurring chiefly in the brain and spinal cord, composed of phosphoric acid, choline, sphingosine, and a fatty acid.
- spiny dogfish — any of several dogfish sharks of the genus Squalus, having a spine in front of each of the two dorsal fins, especially S. acanthias, inhabiting Atlantic coastal waters.
- splanchnology — the visceral system
- steganography — the practice of concealing messages in such a way that only the sender and the recipient know that there is a message
- symbolography — the writing of symbolic characters or tracing of symbolic figures
- thanatography — an account or story of a person's death experience
- typographical — of or relating to typography.
- uprighteously — in an upright or moral manner
- xylographical — Xylographic.
- zoophysiology — the physiology of animals as opposed to humans
- zoopsychology — the psychology of animals
- zygapophyseal — one of the four processes of a vertebra, occurring in pairs that interlock each vertebra with the vertebrae above and below.