13-letter words containing o, y, s
- gynecologists — Plural form of gynecologist.
- gynodioecious — having female flowers on one plant and hermaphrodite flowers on another plant of the same species.
- gynomonoecism — the condition of having female flowers and also flowers that have a pistil and stamen on the same plant
- gyrocompasses — Plural form of gyrocompass.
- gyromagnetism — the condition or state of being gyromagnetic
- haemodialyses — Plural form of haemodialysis.
- haemodialysis — (medicine) the use of dialysis to remove waste products from the blood in the case of kidney failure.
- haemodynamics — a branch of physiology that deals with the circulation of the blood
- halfway house — an inn or stopping place situated approximately midway between two places on a road.
- harry hotspur — the nickname of Sir Henry Percy
- have eyes for — to be interested in
- he's your man — he's the person needed (for a particular task, role, job, etc)
- hemocytoblast — a primordial cell capable of developing into any type of blood cell.
- heresiography — a treatise on heresy.
- heterocystous — containing or relating to heterocysts
- 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.
- heusler alloy — any of various alloys of manganese and other nonferromagnetic metals that exhibit ferromagnetism.
- hexadactylous — hexadactylic
- 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.
- high holidays — either of two holy days of special significance, Rosh Hashanah or Yom Kippur.
- hippo zarytus — ancient name of Bizerte.
- histiocytosis — (medicine) An excess of histiocytes, associated with various rare diseases.
- histodialysis — histolysis.
- holidaymakers — Plural form of holidaymaker.
- 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 assembly — assembly at home of something supplied in pieces
- home row keys — home keys
- homogeneously — composed of parts or elements that are all of the same kind; not heterogeneous: a homogeneous population.
- homosexuality — sexual desire or behavior directed toward a person or persons of one's own sex.
- honey stomach — the crop of an ant, bee, or other hymenopterous insect, serving as a reservoir for honeydew and nectar, especially the enlarged crop of a honeybee in which nectar is acted on by enzymes to form honey.
- 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.
- horned scully — a tapered block of concrete with projecting steel rails, placed under water to tear holes in the bottoms of boats.
- hospitability — The quality of being hospitable.
- house of keys — the lower house of the legislature of the Isle of Man.
- housey-housey — house (def 19).
- 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.
- hybridisation — Alternative form of hybridization.
- 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.
- 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.
- hydrocolloids — Plural form of hydrocolloid.
- hydrodynamics — the branch of fluid dynamics that deals with liquids, including hydrostatics and hydrokinetics.