18-letter words containing i, d, y, l
- sulfuric anhydride — sulfur trioxide.
- superciliary ridge — browridge.
- the encyclopedists — the writers of the French Encyclopedia (1751-72) edited by Diderot and d'Alembert, which contained the advanced ideas of the period
- the hotel industry — the branch of the services industry which provides hotels
- to close your mind — If you close your mind to something, you deliberately do not think about it or pay attention to it.
- to gird your loins — If you gird your loins, you prepare to do something difficult or dangerous.
- 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.
- unit-linked policy — a life-assurance policy, the investment benefits of which are directly in proportion to the number of units in a unit trust purchased on the policyholder's behalf
- 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.