13-letter words containing r, i, d, o
- lounge lizard — a foppish man who frequents bars, cafés, hotel lounges, etc., with or in search of women.
- ludicrousness — The state or quality of being ludicrous.
- macrodiagonal — the longer of two diagonals
- macrodynamics — Large-scale dynamics.
- macropinacoid — a crystalline pinacoid which runs parallel to the longer horizontal axis
- madeira topaz — citrine (def 2).
- madre de dios — a river in Peru and Bolivia, flowing E to the Beni River. 900 miles (1450 km) long.
- maid of honor — an unmarried woman who is the chief attendant of a bride. Compare matron of honor.
- mail exploder — (messaging) Part of an electronic mail delivery system which allows a message to be delivered to a list of addresses. Mail exploders are used to implement mailing lists. Users send messages to a single address and the mail exploder takes care of delivery to the individual mailboxes in the list.
- major medical — insurance designed to compensate for particularly large medical expenses due to a severe or prolonged illness, usually by paying a high percentage of medical bills above a certain amount.
- maladroitness — lacking in adroitness; unskillful; awkward; bungling; tactless: to handle a diplomatic crisis in a very maladroit way.
- mandatoriness — The quality or state of being mandatory.
- mandibuliform — Having the form of a mandible; - said especially of the maxill\u00e6 of an insect when hard and adapted for biting.
- matchboarding — a construction of matchboards.
- material mode — the normal use of language that refers to extra-linguistic subjects without explicit mention of the words themselves. Fido is a dog is in the material mode, while "Fido" is a dog's name is in the formal mode
- measuring rod — ruler, gauge, stick for measuring
- medical board — a group of people qualified to give opinions on medical matters
- medium bomber — a moderately large airplane capable of carrying large bomb loads for moderate distances at medium altitudes, especially one having a gross loaded weight of 100,000 to 250,000 pounds (45,000 to 113,000 kg).
- medium quarto — a size of book, about 9½ × 12 inches (24 × 30 cm), untrimmed. Abbreviation: medium 4to.
- melodramatics — Melodramatic behavior, action, or writing.
- melodramatist — A writer of melodramas.
- melodramatize — to make melodramatic.
- meridionality — the quality or state of being on the meridian
- metronidazole — a synthetic antimicrobial substance, C 6 H 9 N 3 O 3 , used chiefly in the treatment of infections, such as Trichomonas vaginalis and certain anaerobic bacterial infections.
- micr encoding — The MICR encoding of a check is the magnetic ink pattern at the bottom that can be scanned and that contains information about the check.
- microdetector — an instrument measuring small quantities or changes.
- microdiskette — Alternative spelling of micro-diskette.
- microsoft dos — Microsoft Disk Operating System
- mid glamorgan — a county in S Wales. 393 sq. mi. (1019 sq. km).
- mid-victorian — of, relating to, or characteristic of the middle portion (about 1850 to 1890) of the reign of Queen Victoria (reigned 1837–1901) in England: mid-Victorian writers.
- middle course — an option or alternative between more extreme alternatives
- middle ground — an intermediate position, area, or recourse between two opposites or extremes; a halfway or neutral standpoint.
- middleborough — a town in SE Massachusetts.
- middlesbrough — a seaport in NE England, on the Tees estuary.
- milford haven — a bay in SW Wales.
- milk products — dairy produce, items made with milk
- mine detector — an electromagnetic device for locating buried or concealed land mines.
- minimum order — A minimum order is the smallest amount or number that may be ordered in one delivery, usually to spread delivery costs over an economical number of units.
- miscomprehend — Misunderstand.
- misconfigured — Simple past tense and past participle of misconfigure.
- miscoordinate — of the same order or degree; equal in rank or importance.
- misdemeanours — Plural form of misdemeanour.
- mispronounced — Said wrongly.
- misrecognized — Simple past tense and past participle of misrecognize.
- misredemption — illegal or fraudulent traffic in consumer product coupons, including mail theft and counterfeiting.
- misunderstood — improperly understood or interpreted.
- mitochondrial — (cytology) Of, or relating to mitochondria.
- mitochondrion — an organelle in the cytoplasm of cells that functions in energy production.
- mock whipbird — an Australian bird, Pachycephala rufiventris, which is not of the whipbird family
- model railway — a model of a small-scale railway system, often with toy moving trains