13-letter words containing e, y, s, r
- 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.
- heuristically — serving to indicate or point out; stimulating interest as a means of furthering investigation.
- heusler alloy — any of various alloys of manganese and other nonferromagnetic metals that exhibit ferromagnetism.
- 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.
- holidaymakers — Plural form of holidaymaker.
- 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 row keys — home keys
- 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.
- 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 system — a way of working, organizing, or doing something that is composed of elements of two separate systems
- 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.
- hydrokinetics — the branch of hydrodynamics that deals with the laws governing liquids or gases in motion.
- hydromedusoid — a jellyfish or something resembling a jellyfish that lives in water
- hydrosulfides — Plural form of hydrosulfide.
- 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.
- hyper-realism — interest in or concern for the actual or real, as distinguished from the abstract, speculative, etc.
- hyperadenosis — abnormal enlargement of the glands, especially of the lymph nodes.
- hyperbolising — to use hyperbole; exaggerate.
- hypercautious — Especially or unreasonably cautious.
- hyperesthesia — an abnormally acute sense of pain, heat, cold, or touch; algesia.
- hyperesthetic — Relating to, or exhibiting, hyperesthesia.
- hyperhidrosis — abnormally excessive sweating.
- hyperlordosis — Particularly severe lordosis.
- hypermegasoma — gigantism.
- hyperparasite — an organism that is parasitic on or in another parasite.
- hyperpersonal — Very highly personal.
- hyperphysical — being above or beyond the physical; immaterial; supernatural.
- hyperprosexia — a condition in which the whole attention is occupied by one object or idea to the exclusion of others
- hypersalinity — an excess of salt in a saline solution
- hypersarcosis — a fleshy outgrowth
- hypersplenism — an abnormal condition characterized by an enlarged spleen that prematurely destroys red blood cells or platelets.
- hypersthenite — a person who possesses an excess of muscle strength
- hypersurfaces — Plural form of hypersurface.
- hypertensives — Plural form of hypertensive.
- hypertrophies — Plural form of hypertrophy.
- hypertrophous — relating to hypertrophy
- hyperurbanism — a pronunciation or grammatical form or usage produced by a speaker of one dialect according to an analogical rule formed by comparison of the speaker's own usage with that of another, more prestigious, dialect and often applied in an inappropriate context, especially in an effort to avoid sounding countrified, rural, or provincial, as in the pronunciation of the word two (to̅o̅) as (tyo̅o̅).
- hypervascular — pertaining to, composed of, or provided with vessels or ducts that convey fluids, as blood, lymph, or sap.
- hypochlorites — Plural form of hypochlorite.