12-letter words containing k, e, r, o
- groundkeeper — groundskeeper.
- groundstroke — A stroke played after the ball has bounced, as opposed to a volley.
- groundworker — One who works on the ground, as opposed to an aviator, etc.
- guest worker — a foreign worker permitted to work in a country, especially in Western Europe, on a temporary basis.
- hanover park — a city in NE Illinois.
- heart of oak — a brave person
- heterokaryon — a cell containing two or more nuclei of differing genetic constitutions.
- heterokontan — of or relating to a heterokont
- hickory pine — bristlecone pine.
- hobble skirt — a woman's skirt that is very narrow at the bottom, causing the wearer to walk with short, mincing steps.
- holidaymaker — vacationer.
- holkar state — a former state of central India, ruled by the Holkar dynasty of Maratha rulers of Indore (18th century until 1947)
- horse's neck — a drink of whiskey and ginger ale, served with ice and garnished with a spiral of lemon peel on the rim of the glass.
- horsebreaker — One who trains, or breaks in, horses.
- hotel worker — a person who works in the hotel industry
- hotelkeepers — Plural form of hotelkeeper.
- house-broken — (of a pet) trained to avoid excreting inside the house or in improper places.
- housebreaker — a person who breaks into and enters a house with a felonious intent.
- housekeepers — Plural form of housekeeper.
- housewrecker — wrecker (def 4).
- hydrocracker — a high-pressure processing unit used for hydrocracking.
- hydrokinesis — (science fiction): The psychic ability to manipulate or control water.
- hydrokinetic — pertaining to the motion of liquids.
- in the works — exertion or effort directed to produce or accomplish something; labor; toil.
- inkhorn term — an obscure, affectedly or ostentatiously erudite borrowing from another language, especially Latin or Greek.
- interlocking — to fit into each other, as parts of machinery, so that all action is synchronized.
- internetwork — two or more computer networks connected by routers, bridges, etc.: The Internet is the largest internetwork.
- interworking — to work or weave together; interweave.
- jackarooesse — (Australia, obsolete, rare) A female jackaroo.
- jacket crown — a type of artificial, tooth-colored dental crown made of acrylic or porcelain
- jodrell bank — site of a radio astronomy observatory (Nuffield Radio Astronomy Laboratories) in NE Cheshire, England, that operates a 250-foot (76-meter) radio telescope.
- junior clerk — a clerk of low rank
- karyokinesis — mitosis.
- karyokinetic — Of or pertaining to karyokinesis.
- 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.
- keeping room — hall (def 11).
- keratinocyte — An epidermal cell that produces keratin.
- keratogenous — producing horn or a horny substance.
- 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.
- keratoplasty — plastic surgery performed upon the cornea, especially a corneal transplantation.
- keratotomies — Plural form of keratotomy.
- keraunograph — an instrument for recording thunderstorms by detecting the radio waves generated
- ketoaciduria — (pathology) The presence of (excess) ketoacids in the urine.
- ketone group — the characteristic group occurring in ketones that consists of the carbonyl group attached to two alkyl groups.
- keyboardists — Plural form of keyboardist.
- khornerstone — A multipurpose benchmark from Workstation Labs used in various periodicals. The source is not free. Results are published in "UNIX Review".
- kidney donor — someone who donates one of their kidneys to be transplanted into another person
- killer micro — [Popularised by Eugene Brooks] A microprocessor-based machine that infringes on mini, mainframe, or supercomputer performance turf. Often heard in "No one will survive the attack of the killer micros!", the battle cry of the downsizers. Used especially of RISC architectures. The popularity of the phrase "attack of the killer micros" is doubtless reinforced by the movie title "Attack Of The Killer Tomatoes" (one of the canonical examples of so-bad-it's-wonderful among hackers). This has even more flavour now that killer micros have gone on the offensive not just individually (in workstations) but in hordes (within massively parallel computers).
- kilocalories — Plural form of kilocalorie.