16-letter words containing a, t, r, s
- harvest festival — religious celebration of crops gathered
- harvey firestone — Harvey Samuel, 1868–1938, U.S. industrialist and rubber manufacturer.
- has the x nature — (From Zen Buddhist koans of the form "Does an X have the Buddha-nature?") Common hacker construction for "is an X", used for humorous emphasis. "Anyone who can't even use a program with on-screen help embedded in it truly has the loser nature!" See also the X that can be Y is not the true X.
- haversian system — a Haversian canal and the series of concentric bony plates surrounding it.
- hawksbill turtle — a sea turtle, Eretmochelys imbricata, the shell of which is the source of tortoise shell: an endangered species.
- hay-scented fern — a fern, Dennstaedtia punctilobula, of eastern North America, having brittle, yellow-green fronds.
- haymarket square — a square in Chicago: scene of a riot (Haymarket Riot) in 1886 between police and labor unionists.
- headmistressship — (rare) Alternative form of headmistress-ship.
- health inspector — a public employee who inspects places such as restaurants, shops, factories etc to make sure they are hygienic and do not pose any dangers to health
- health insurance — insurance that compensates the insured for expenses or loss incurred for medical reasons, as through illness or hospitalization.
- heart transplant — surgery to replace a patient's heart
- heat prostration — heat exhaustion.
- hematocrystallin — (biology, archaic) hemoglobin.
- hemotherapeutics — hemotherapy.
- hepatopancreases — Plural form of hepatopancreas.
- hernando de soto — Hernando [her-nan-doh;; Spanish er-nahn-daw] /hərˈnæn doʊ;; Spanish ɛrˈnɑn dɔ/ (Show IPA), or Fernando [fer-nan-doh;; Spanish fer-nahn-daw] /fərˈnæn doʊ;; Spanish fɛrˈnɑn dɔ/ (Show IPA), c1500–42, Spanish soldier and explorer in America.
- herpes genitalis — genital herpes.
- heterometabolism — insect development in which the young hatch in a form very similar to the adult and then mature without a pupal stage
- heterometabolous — undergoing development in which the young are born adultlike in form, often maturing without a pupal stage.
- high wire artist — a performer of a high-wire act
- high-pass filter — a filter that allows high-frequency electromagnetic signals to pass while rejecting or attenuating others below a specific value.
- high/great hopes — If you have high hopes or great hopes that something will happen, you are confident that it will happen.
- historical novel — a novel within the genre of historical fiction.
- historiographies — Plural form of historiography.
- hit one's straps — to achieve one's full potential or become fully effective
- horary astrology — a method through which the answer to a question is sought by casting and interpreting a horoscope for the precise moment one learns of an event, problem, career opportunity, etc.
- horizon distance — Television. the distance of the farthest point on the earth's surface visible from a transmitting antenna.
- horseradish tree — a tropical tree, Moringa pterygosperma, having fragrant white flowers and seeds yielding a commercially useful oil.
- horseshoe magnet — a horseshoe-shaped permanent magnet.
- horsetail agaric — the shaggy-mane.
- horticulturalist — Misspelling of horticulturist.
- hospital corners — a fold on a bed sheet or blanket made by tucking the foot or head of the sheet straight under the mattress with the ends protruding and then making a diagonal fold at the side corner of the sheet and tucking this under to produce a triangular corner.
- hospital service — the whole organization of government funded hospitals, their staff, and the services they provide
- hostile takeover — a takeover that is not approved by the management of the corporation being acquired or that is accomplished through the secret purchase of stock.
- housing shortage — a deficiency or lack in the number of houses needed to accommodate the population of an area
- how's that for…? — is this satisfactory as regards…?
- hydrostatic head — The hydrostatic head is the vertical height of a column of fluid.
- hyper-patriotism — devoted love, support, and defense of one's country; national loyalty.
- hypermasculinity — pertaining to or characteristic of a man or men: masculine attire.
- hyperperistalsis — the progressive wave of contraction and relaxation of a tubular muscular system, especially the alimentary canal, by which the contents are forced through the system.
- hyperpituitarism — overactivity of the pituitary gland.
- hyperstimulation — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
- hypervascularity — pertaining to, composed of, or provided with vessels or ducts that convey fluids, as blood, lymph, or sap.
- hypervitaminosis — an abnormal condition caused by an excessive intake of vitamins.
- hypocoristically — In a hypocoristic manner.
- hyponitrous acid — an unstable, crystalline acid, H 2 N 2 O 2 .
- i'm sorry to say — You use the expression I'm sorry to say to express regret together with disappointment or disapproval.
- icositetrahedron — a solid figure having 24 faces.
- if it wasn't for — If you talk about what would happen if it wasn't for someone or something, you mean that they are the only thing that is preventing it from happening.
- immersion heater — a small electric coil used to heat a liquid, as a cup of water, in which it is immersed.