12-letter words containing a, k, t, h
- glatt kosher — prepared for eating according to the dietary laws followed by Hasidic Jews, which differ somewhat from those followed by other observers of kashruth: glatt kosher meat.
- hack to bits — to damage severely
- hacker ethic — (philosophy) 1. The belief that information-sharing is a powerful positive good, and that it is an ethical duty of hackers to share their expertise by writing free software and facilitating access to information and to computing resources wherever possible. 2. The belief that system-cracking for fun and exploration is ethically OK as long as the cracker commits no theft, vandalism, or breach of confidentiality. Both of these normative ethical principles are widely, but by no means universally, accepted among hackers. Most hackers subscribe to the hacker ethic in sense 1, and many act on it by writing and giving away free software. A few go further and assert that *all* information should be free and *any* proprietary control of it is bad; this is the philosophy behind the GNU project. Sense 2 is more controversial: some people consider the act of cracking itself to be unethical, like breaking and entering. But the belief that "ethical" cracking excludes destruction at least moderates the behaviour of people who see themselves as "benign" crackers (see also samurai). On this view, it may be one of the highest forms of hackerly courtesy to (a) break into a system, and then (b) explain to the sysop, preferably by e-mail from a superuser account, exactly how it was done and how the hole can be plugged - acting as an unpaid (and unsolicited) tiger team. The most reliable manifestation of either version of the hacker ethic is that almost all hackers are actively willing to share technical tricks, software, and (where possible) computing resources with other hackers. Huge cooperative networks such as Usenet, FidoNet and Internet (see Internet address) can function without central control because of this trait; they both rely on and reinforce a sense of community that may be hackerdom's most valuable intangible asset.
- haikwan tael — the customs unit in China, which is the basis for other local taels, equal to 1.20666 troy ounces of fine silver.
- haliplankton — plankton living in sea water
- hark back to — recall: earlier era
- harold stark — Harold Raynsford [reynz-ferd] /ˈreɪnz fərd/ (Show IPA), 1880–1972, U.S. admiral.
- harvest tick — chigger (def 1).
- have kittens — to react with disapproval, anxiety, etc
- health check — a medical checkup
- health drink — a drink that claims to be beneficial to health
- heart attack — damage to an area of heart muscle that is deprived of oxygen, usually due to blockage of a diseased coronary artery, typically accompanied by chest pain radiating down one or both arms, the severity of the attack varying with the extent and location of the damage; myocardial infarction.
- heart of oak — a brave person
- heartbreaker — a person, event, or thing causing heartbreak.
- heat-seeking — A heat-seeking missile or device is one that is able to detect a source of heat.
- heeling tank — either of two lateral ballast tanks permitting an icebreaker to heel and crush ice to either side.
- hello packet — (networking, communications) An OSPF packet sent periodically on each network interface, real or virtual, to discover and test connections to neighbours. Hello packets are multicast on physical networks capable of multicasting or broadcasting to enable dynamic router discovery. They include the parameters that routers connected to a common network must agree on. Hello packets increase network resilience by, e.g., allowing a router to establish a secondary connection when a primary connection fails.
- hemiplankton — plankton that spend part of their life cycle in a vegetative state on the sea bottom, riverbed, etc. (opposed to holoplankton).
- heterokaryon — a cell containing two or more nuclei of differing genetic constitutions.
- heterokontan — of or relating to a heterokont
- hiking trail — a specially designated route for hikers to use
- hit the mark — to achieve one's aim; be successful in one's attempt
- hit the sack — a large bag of strong, coarsely woven material, as for grain, potatoes, or coal.
- hockey skate — a tubular ice skate having a shorter blade than a racing skate and often having a reinforced shoe for protection.
- holding tank — a tank for the temporary storage of a substance.
- holkar state — a former state of central India, ruled by the Holkar dynasty of Maratha rulers of Indore (18th century until 1947)
- holoplankton — plankton that spend their entire life cycle as free-swimming organisms (opposed to hemiplankton).
- hypermarkets — Plural form of hypermarket.
- in the black — lacking hue and brightness; absorbing light without reflecting any of the rays composing it.
- jack-the-lad — a young man who is regarded as a brash, loud show-off
- kaffeeklatch — Alternative spelling of coffee klatch.
- kashmir goat — one of a long-haired breed of goat raised in Tibet and the higher elevations of China, the Indian subcontinent, Afghanistan, and Turkey for its meat, milk, and cashmere wool.
- katamorphism — metamorphism at or near the earth's surface: breaks down complex minerals into simpler ones.
- kath and kim — a personification of the White population of middle Australia
- katharevousa — The purist form of modern Greek used in traditional literary writing, as opposed to the form that is spoken and used in everyday writing (called demotic).
- katharometer — (science) A device used for analyzing gas mixtures by measuring their thermal conductivity.
- keratohyalin — (biology) A protein structure found in granules in the stratum granulosum of the epidermis, which may be involved in keratinization, and in Hassall corpuscles in the thymus.
- khachaturian — Aram Ilich [ar-uh m il-yich;; Russian uh-rahm ee-lyeech] /ˈær əm ˈɪl yɪtʃ;; Russian ʌˈrɑm iˈlyitʃ/ (Show IPA), 1903–78, Armenian composer.
- kinaesthesia — kinesthesia.
- kinaesthesis — kinesthesia.
- kinaesthetic — Alternative form of kinesthetic.
- kind hearted — having or showing sympathy or kindness: a kindhearted woman.
- kind-hearted — having or showing sympathy or kindness: a kindhearted woman.
- kinesipathic — of or relating to kinesipathy
- kinetography — a camera for taking pictures for a kinetoscope.
- kitchen salt — coarse salt that is used in cooking but not at the table
- kitchen soap — heavy-duty soap intended for use in the kitchen
- kitchenwares — Plural form of kitchenware.
- kith and kin — friends and family
- kittikachorn — Thanom [thah-nom] /θɑˈnɒm/ (Show IPA), 1911–2004, Thai army officer and statesman: premier 1963–73.