18-letter words containing r, e, l, t
- interlacing arcade — an arcade, especially a blind one, composed of arches (interlacing arches) so arranged and cut that each arch seems to intersect and be intersected by one or more other arches.
- internal secretion — a secretion, esp a hormone, that is absorbed directly into the blood
- international code — a code used at sea by the navies of certain nations, using a series of flags representing digits from zero through nine.
- international unit — an internationally agreed upon standard, as measured by bioassay, to which samples of a substance, as a drug or hormone, are compared to ascertain their relative potency.
- internationalizing — Present participle of internationalize.
- internet telephony — IP Telephony
- interrelationships — Plural form of interrelationship.
- interstellar space — astronomy: space between the stars
- involuntary muscle — muscle: contracts involuntarily
- iron (ii) sulphate — an iron salt with a saline taste, usually obtained as greenish crystals of the heptahydrate, which are converted to the white monohydrate above 100°C: used in inks, tanning, water purification, and in the treatment of anaemia. Formula: FeSO4
- irresponsibilities — said, done, or characterized by a lack of a sense of responsibility: His refusal to work shows him to be completely irresponsible.
- isothermal process — a process that takes place without change in temperature.
- jack of all trades — a person who is adept at many different kinds of work.
- jack-of-all-trades — a person who is adept at many different kinds of work.
- jacobite rebellion — the unsuccessful Jacobite rising of 1715 led by James Francis Edward Stuart
- james-lange theory — a theory that emotions are caused by bodily sensations; for example, we are sad because we weep
- jet-enamelled ware — English Worcester porcelain ware of the 18th century, transfer-printed in black.
- jewel in the crown — the most valuable, esteemed, or successful person or thing of a number
- junior lightweight — a boxer weighing up to 130 pounds (58.5 kg), between featherweight and lightweight.
- kentucky bluegrass — a grass, Poa pratensis, of the Mississippi valley, used for pasturage and lawns.
- kerry blue terrier — one of an Irish breed of terriers having a soft, wavy, bluish-gray coat.
- killer application — a highly innovative, very powerful, or extremely useful computer application; esp one sufficiently important as to justify purchase of the equipment or software
- king's regulations — (in Britain and the Commonwealth when the sovereign is male) the code of conduct for members of the armed forces that deals with discipline, aspects of military law, etc
- kirtland's warbler — a wood warbler, Dendroica kirtlandii, breeding only in north-central Michigan and wintering in the Bahamas, bluish gray above, striped with black and pale yellow below: an endangered species.
- knotted cranesbill — a British wildflower, Geranium nodosum, an meadow geranium with bright pink or purple flowers
- labeled bracketing — a representation of the constituent structure of a string, as a word or sentence, comparable to a tree diagram, in which each constituent is shown in brackets and given a subscript grammatical label, with each bracketed item corresponding to a node in a tree diagram.
- labrador retriever — one of a breed of retrievers having a short, thick, oily, solid black or yellow coat, raised originally in Newfoundland.
- lactogenic hormone — prolactin.
- lactose intolerant — cannot digest milk
- lagrange's theorem — the theorem that the order of each subgroup of a finite group is a factor of the order of the group.
- lake pontchartrain — a shallow lagoon in SE Louisiana, linked with the Gulf of Mexico by a narrow channel, the Rigolets: resort and fishing centre. Area: 1620 sq km (625 sq miles)
- lambeth conference — a convention of the bishops of the Anglican communion, held about every 10 years at Lambeth Palace to confer but not to define doctrine or to legislate on ecclesiastical matters.
- land grant college — a state university established with a grant of public land
- land-grant college — a U.S. college or university (land-grant university) entitled to support from the federal government under the provisions of the Morrill Acts.
- lateral resistance — resistance to sidewise motion caused by wind pressure, supplied by the immersed portion of a hull of a vessel.
- laurentian plateau — (in Canada) the wide area of Precambrian rock extending west from the Labrador coast to the basin of the Mackenzie and north from the Great Lakes to Hudson Bay and the Arctic: rich in minerals
- law of segregation — the principle, originated by Gregor Mendel, stating that during the production of gametes the two copies of each hereditary factor segregate so that offspring acquire one factor from each parent.
- lay at the door of — to blame (a person) for
- lean manufacturing — efficiency in the production of goods
- leatherback turtle — a sea turtle, Dermochelys coriacea, having the shell embedded in a leathery skin, reaching a length of more than 7 feet (2.1 meter) and a weight of more than 1000 pounds (450 kg): the largest living sea turtle; an endangered species.
- leave in the lurch — a situation at the close of various games in which the loser scores nothing or is far behind the opponent.
- left-eyed flounder — any of several flat-fishes of the family Bothidae, having both eyes on the left side of the head.
- legislative branch — the branch of government having the power to make laws; the legislature.
- lenticular process — a method for producing images with a three-dimensional effect by photographing on lenticulated film.
- lesser whitethroat — an Old World warbler, Sylvia curruca, having a greyish-brown plumage with a white throat and underparts
- let oneself in for — If you say that you did not know what you were letting yourself in for when you decided to do something, you mean you did not realize how difficult, unpleasant, or expensive it was going to be.
- lieutenant general — a commissioned officer ranking next below a general and next above a major general.
- light welterweight — an amateur boxer weighing 60–63.5 kg (132–140 pounds)
- lighting cameraman — the person who designs and supervises the lighting of scenes to be filmed
- lightning arrester — a device for preventing damage to radio, telephonic, or other electric equipment from lightning or other high-voltage currents, using spark gaps to carry the current to the ground without passing through the device.