13-letter words containing r, y, o
- herniorrhaphy — correction of a hernia by a suturing procedure.
- heterocystous — containing or relating to heterocysts
- heterogeneity — the quality or state of being heterogeneous; composition from dissimilar parts; disparateness.
- heterostrophy — the condition of being heterostrophic
- heterostylism — the condition of being heterostyled
- heterozygosis — the state of being a heterozygote.
- heterozygotes — a hybrid containing genes for two unlike forms of a characteristic, and therefore not breeding true to type.
- heterozygotic — having dissimilar pairs of genes for any hereditary characteristic.
- heusler alloy — any of various alloys of manganese and other nonferromagnetic metals that exhibit ferromagnetism.
- hickory hills — a town in NE Illinois.
- hieroglyphics — Also, hieroglyphical. designating or pertaining to a pictographic script, particularly that of the ancient Egyptians, in which many of the symbols are conventionalized, recognizable pictures of the things represented.
- hieroglyphist — a person who studies hieroglyphics; hieroglyphologist.
- hippo zarytus — ancient name of Bizerte.
- hockey player — sportsperson: plays hockey
- holiday-maker — vacationer.
- holidaymakers — Plural form of holidaymaker.
- holy mackerel — astonishment
- holy saturday — the Saturday in Holy Week.
- holy thursday — Ascension Day.
- holyroodhouse — a royal palace in Edinburgh in Scotland: official residence of the Queen when in Scotland; begun in 1501 by James IV of Scotland; scene of the murder of David Rizzio in 1566
- home delivery — delivery to one's home
- home row keys — home keys
- homopolymeric — relating to or made of homopolymers
- honey buzzard — a long-tailed Old World hawk, Pernis apivorus, that feeds on the larvae of bees as well as on small rodents, reptiles, and insects.
- honey creeper — any of several small, usually brightly colored birds, related to the tanagers and wood warblers, of tropical and semitropical America.
- honeycreepers — Plural form of honeycreeper.
- honor society — (in a college, university, or secondary school) a student society that admits members on the basis of academic merit and, sometimes, worthwhile contributions in extracurricular activities.
- honorifically — In a honorific manner.
- honourability — A state or condition or being honourable.
- horizontality — at right angles to the vertical; parallel to level ground.
- hormic theory — a theory that holds all behavior to be purposive, whether conscious or unconscious.
- horned scully — a tapered block of concrete with projecting steel rails, placed under water to tear holes in the bottoms of boats.
- horologically — of or relating to horology.
- hourly worker — an employee who is paid an hourly rate rather than a fixed salary
- howler monkey — Central American simian variety
- hyaluronidase — Biochemistry. a mucolytic enzyme found in the testes, in snake venom, and in hemolytic streptococci and certain other bacteria, that decreases the viscosity of the intercellular matrix by breaking down hyaluronic acid.
- hybrid vigour — the increased size, strength, etc, of a hybrid as compared to either of its parents
- hybridisation — Alternative form of hybridization.
- hybridization — to cause to produce hybrids; cross.
- hydrarthrosis — a build-up of fluid or water in the cavity of a joint, esp the knee joint
- hydroaerobics — aerobic exercises performed in water, as in a swimming pool.
- hydroairplane — a hydroplane.
- hydroboration — (chemistry) the production or organoboranes by the addition of diborane to unsaturated organic compounds.
- hydrocephalic — of or relating to hydrocephalus.
- hydrocephalus — an accumulation of serous fluid within the cranium, especially in infancy, due to obstruction of the movement of cerebrospinal fluid, often causing great enlargement of the head; water on the brain.
- hydrochloride — a salt, especially of an alkaloid, formed by the direct union of hydrochloric acid with an organic base that makes the organic constituent more soluble.
- hydrocolloids — Plural form of hydrocolloid.
- hydrocracking — the cracking of petroleum or the like in the presence of hydrogen.
- hydrodynamics — the branch of fluid dynamics that deals with liquids, including hydrostatics and hydrokinetics.
- hydroelectric — pertaining to the generation and distribution of electricity derived from the energy of falling water or any other hydraulic source.