13-letter words containing o, p, y
- greek cypriot — a Cypriot of Greek descent
- grey-thompson — Tanni (Carys Davina) Baroness. born 1969, Welsh wheelchair athlete; won eleven gold medals for Britain in wheelchair racing in the Paralympic Games (1988–2004); a crossbench peer in the House of Lords since 2010
- group annuity — a plan in which the members of a group, usually employees of the same company, receive annuities upon retirement.
- group therapy — psychotherapy in which a number of patients discuss their problems together, usually under the leadership of a therapist, using shared knowledge and experiences to provide constructive feedback about maladaptive behavior.
- gymnospermous — of or relating to a gymnosperm; having exposed or naked seeds.
- gynaecophobia — (psychology) An irrational fear of women.
- gynandromorph — an individual exhibiting morphological characteristics of both sexes.
- gyro repeater — a navigational compass, under the control of a gyroscope, that automatically indicates true north.
- gyrocompasses — Plural form of gyrocompass.
- happy warrior — a person who is undiscouraged by difficulties or opposition.
- harry hotspur — the nickname of Sir Henry Percy
- hemolymphatic — a fluid in the body cavities and tissues of invertebrates, in arthropods functioning as blood and in some other invertebrates functioning as lymph.
- hemp agrimony — a European composite plant, Eupatorium cannabinum, having dull purplish flowers.
- hepatobiliary — Of, pertaining to, or originating in the liver, bile ducts and gallbladder.
- heresiography — a treatise on heresy.
- hermaphrodyte — (archaic) alternative spelling of hermaphrodite.
- herniorrhaphy — correction of a hernia by a suturing procedure.
- heterostrophy — the condition of being heterostrophic
- 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
- homopolymeric — relating to or made of homopolymers
- 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.
- hospitability — The quality of being hospitable.
- hydroairplane — a hydroplane.
- 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.
- hydromorphone — A synthetic narcotic analgesic, (4,5 alpha-epoxy-3-hydroxy-17-methyl morphinan-6-one), similar to morphine and heroin. It is used for moderate to severe pain under the trade name Dilaudid.
- hydropathical — Alternative form of hydropathic.
- hydroperoxide — any chemical compound having the general formula, ROOH, where R is an element or an organic group.
- hydrosulphate — a salt formed by the direct union of sulfuric acid with an organic base, especially an alkaloid, and usually more soluble than the base.
- hydrosulphide — a compound containing the univalent group –HS.
- hydrosulphite — hyposulfite (def 1).
- hymenopterans — Plural form of hymenopteran.
- hymenopterous — belonging or pertaining to the Hymenoptera, an order of insects having, when winged, four membranous wings, and comprising the wasps, bees, ants, ichneumon flies, and sawflies.
- hymenorrhaphy — (medicine) Reconstructive surgery in which a woman's hymen is restored to the unbroken condition ordinarily characteristic of virginity.
- hyperadenosis — abnormal enlargement of the glands, especially of the lymph nodes.
- hyperbolising — to use hyperbole; exaggerate.
- hyperboloidal — Having the shape or form of a hyperboloid.
- hypercautious — Especially or unreasonably cautious.
- hypercyanotic — blueness or lividness of the skin, as from imperfectly oxygenated blood.
- hyperdicrotic — having or pertaining to a double beat of the pulse for each beat of the heart.
- hyperfunction — abnormally increased function, especially of glands or other organs.
- hyperhidrosis — abnormally excessive sweating.
- hyperlordosis — Particularly severe lordosis.
- hypermegasoma — gigantism.
- hypermetropia — a condition of the eye in which parallel rays are focused behind the retina, distant objects being seen more distinctly than near ones; farsightedness (opposed to myopia).
- hypermetropic — Exhibiting or relating to hypermetropia.