20-letter words containing i, r, e, f, a, g
- officer of the guard — an officer, acting under the officer of the day, who is responsible for the instruction, discipline, and performance of duty of the guard in a post, camp, or station. Abbreviation: OG, O.G.
- order bill of lading — a bill of lading that is issued to the order of a shipper or consignee for delivery of the goods and that can be transferred by endorsement to third parties.
- refracting telescope — an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens set into one end of a tube and an adjustable eyepiece or combination of lenses set into the other end of a tube that slides into the first and through which the enlarged object is viewed directly; the other form (reflecting telescope) has a concave mirror that gathers light from the object and focuses it into an adjustable eyepiece or combination of lenses through which the reflection of the object is enlarged and viewed. Compare radio telescope.
- refrigerator-freezer — a large appliance housing one compartment for refrigerating food and another for freezing.
- regenerative furnace — a furnace in which the incoming air is heated by regenerators.
- restriction fragment — a length of DNA cut from the strand by a restriction enzyme.
- sarcastic fringehead — any fish of the genus Neoclinus, characterized by a row of fleshy processes on the head, as N. blanchardi (sarcastic fringehead) of California coastal waters.
- self-differentiating — to form or mark differently from other such things; distinguish.
- sergeant first class — a noncommissioned officer ranking next above a staff sergeant and below a first or master sergeant.
- snowflake generation — the generation of people who became adults in the 2010s, viewed as being less resilient and more prone to taking offence than previous generations
- software engineering — the process of writing computer programs
- surface-active agent — any substance that when dissolved in water or an aqueous solution reduces its surface tension or the interfacial tension between it and another liquid.
- the founding fathers — any of the men who were members of the U.S. Constituional Convention of 1787
- the legal profession — the profession of law
- toxemia of pregnancy — an abnormal condition of pregnancy characterized by hypertension, fluid retention, edema, and the presence of protein in the urine.
- transfer of training — transfer (def 19).
- transformation range — the temperature range within which austenite forms when a ferrous metal is heated, or within which it disappears when the metal is cooled.
- vertical lift bridge — lift bridge.
- walk-in refrigerator — a refrigerated storage room, as at a butcher shop.
- watering of the eyes — the formation of tears in the eyes