18-letter words containing d, a, i, l, y
- pyromucic aldehyde — furfural.
- pyrosulphuric acid — a fuming liquid acid made by adding sulphur trioxide to concentrated sulphuric acid. Formula: H2S2O7
- quarry-tiled floor — a floor covered with square or diamond-shaped unglazed floor tiles
- quevedo y villegas — Francisco Gómez de. 1580–1645, Spanish poet and writer, noted for his satires and the picaresque novel La historia de la vida del Buscón (1626)
- racially motivated — motivated by (the hate or prejudice of) someone's race
- rear its ugly head — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
- refrigerated lorry — a lorry which is chilled in the back as for storing food
- rheims-douay bible — Douay Bible.
- secondary diagonal — a diagonal line or plane.
- secondary syphilis — the second stage of syphilis, characterized by eruptions of the skin and mucous membrane.
- self-contradictory — an act or instance of contradicting oneself or itself.
- self-deprecatingly — in a self-deprecating manner
- september holidays — a period of time in September when people do not have to go to school, college or work
- solitary sandpiper — a North American sandpiper, Tringa solitaria, of inland wetlands, having a brownish-gray, white-spotted back and whitish underparts.
- strathclyde region — a former local government region in W Scotland: formed in 1975 from Glasgow, Renfrewshire, Lanarkshire, Buteshire, Dunbartonshire, and parts of Argyllshire, Ayrshire, and Stirlingshire; replaced in 1996 by the council areas of Glasgow, Renfrewshire, East Renfrewshire, Inverclyde, North Lanarkshire, South Lanarkshire, Argyll and Bute, East Dunbartonshire, West Dunbartonshire, North Ayrshire, South Ayrshire, and East Ayrshire
- submaxillary gland — submandibular gland.
- sulfuric anhydride — sulfur trioxide.
- superciliary ridge — browridge.
- traditional policy — a life assurance policy in which the policyholder's premiums are paid into a general fund and his or her investment benefits are calculated according to actuarial formulae
- triarylmethane dye — any of the class of dyes containing three aryl groups attached to a central carbon atom: used chiefly for dyeing cotton, wool, and silk.
- vitamin a aldehyde — retinal2 .
- welwyn garden city — a town in SE England, in Hertfordshire: established (1920) as a planned industrial and residential community. Pop: 43 512 (2001)
- wesleyan methodist — a member of any of the churches founded on the evangelical principles of John Wesley.
- white-spotted hyla — a type of tree frog (H. leucophyllata) of tropical America
- wildlife sanctuary — an area where wild animals and plants are protected
- withdrawal symptom — effects of stopping a drug
- yeast nucleic acid — RNA.