15-letter words containing t, h, i, r, y, o
- factory chimney — a tall chimney of a factory
- fairy godfather — a kindly sponsor or guardian; godfather.
- fairy godmother — a kindly sponsor or guardian; godmother.
- fortysomethings — Plural form of fortysomething.
- geostrophically — By means of, or in terms of, geostrophy.
- griffith-joyner — Florence, known as Flojo. 1959–98, US sprinter, winner of two gold medals at the 1988 Olympic Games
- growth industry — an industry that is experiencing rapid growth
- hair hygrometer — a hygrometer actuated by the changes in length of a strand of human hair brought about by changes in the relative humidity.
- hay conditioner — either of two machines, one designed to crush stems of hay, the other to break and bend them, in order to cause more rapid and even drying
- heliocentricity — measured or considered as being seen from the center of the sun.
- heliometrically — By means of, or in terms of, heliometry.
- hematoporphyria — porphyria.
- hematoporphyrin — a porphyrin made by treating haemoglobin with acid, used to treat cancer in photodynamic therapy
- hemicraniectomy — (surgery) The surgical removal of half of the cranium to enable brain surgery; hemicraniotomy.
- hemicryptophyte — any perennial plant that bears its overwintering buds at soil level, where they are often partly covered by surface debris
- heterocercality — the condition or state of having a heterocercal tail
- heterosexuality — sexual feeling or behavior directed toward a person or persons of the opposite sex.
- histomorphology — histology.
- holiday traffic — increased road traffic during holiday periods and public holidays
- holocrystalline — (of igneous rocks) having only crystalline components and no glass
- honey tangerine — a citrus fruit with a deep-orange pulp, formed by crossing a tangerine and a sweet orange hybrid; Murcott
- honeycomb tripe — a part of the inner lining of the stomach of the steer, calf, hog, or sheep, resembling a honeycomb in appearance and considered a table delicacy.
- horse artillery — cavalry equipped with artillery
- horticulturally — With respect to horticulture.
- hybrid antibody — a synthetic antibody that is able to combine with two different antigens
- hybrid computer — a computer system containing both analog and digital hardware.
- hydraulic motor — a motor that converts the kinetic or potential energy of a fluid into mechanical energy.
- hydrodynamicist — a specialist in hydrodynamics.
- hydrofracturing — a process in which fractures in rocks below the earth's surface are opened and widened by injecting chemicals and liquids at high pressure: used especially to extract natural gas or oil.
- hydropathically — in a hydropathic manner; in a manner relating to hydropathy
- hydrostatically — In a hydrostatic manner.
- hydroxylapatite — Alternative spelling of hydroxyapatite.
- hyper-emotional — pertaining to or involving emotion or the emotions.
- hyperactivation — (biology) A form of sperm motility associated with active beating of the flagellum.
- hypercatabolism — an abnormally high metabolic breakdown of a substance or tissue which leads to weight loss and physical deterioration
- hypercorrection — the substitution, in an inappropriate context, of a pronunciation, grammatical form, or usage thought by the speaker or writer to be appropriate, resulting usually from overgeneralizing in an effort to replace seemingly incorrect forms with correct ones, as the substitution of between you and I for between you and me, by analogy with you and I as the subject of a sentence.
- hyperdemocratic — pertaining to or of the nature of democracy or a democracy.
- hyperfastidious — extremely or excessively fastidious
- hyperfunctional — of or relating to a function or functions: functional difficulties in the administration.
- hypergalactosis — an abnormally large secretion of milk.
- hyperinvolution — a decrease in the size of an organ following enlargement, usually used to describe the shrinking of the uterus after childbirth
- hypermetabolism — Biology, Physiology. the sum of the physical and chemical processes in an organism by which its material substance is produced, maintained, and destroyed, and by which energy is made available. Compare anabolism, catabolism.
- hyperpotassemia — hyperkalemia.
- hyperproduction — an increased or excessive production or output
- hypersalivation — the act or process of salivating.
- hyperthyroidism — overactivity of the thyroid gland.
- hypocortisolism — (medicine) A cortisol deficiency.
- hypocrystalline — (of igneous rocks) having both glass and crystalline components
- hypopituitarism — abnormally diminished activity of the pituitary gland, especially of the anterior lobe.
- hypoproteinemia — an abnormally low concentration of protein in the blood.