13-letter words containing a, u, d, i, o, m
- medium quarto — a size of book, about 9½ × 12 inches (24 × 30 cm), untrimmed. Abbreviation: medium 4to.
- metatoluidine — a colorless, slightly water-soluble liquid, C 7 H 9 N, the meta isomer of toluidine, used in the manufacture of dyes and other organic compounds.
- misdemeanours — Plural form of misdemeanour.
- molluscicidal — relating to a preparation that kills molluscs
- mountainboard — a type of skateboard specially designed for rough terrain and steep slopes, having four large wheels linked by a suspension system
- mountainsides — Plural form of mountainside.
- mourning band — a piece of black material, esp an armband, worn to indicate that the wearer is in mourning
- multimodality — the quality or state of being modal.
- mundification — the act of cleansing a wound
- muzzleloading — Of a gun, having ammunition loaded from the front of the barrel where it will exit.
- oil-based mud — Oil-based mud is a drilling fluid that is an emulsion containing oil as the base fluid.
- ombudsmanship — The position or office of an ombudsman.
- pamlico sound — a sound between the North Carolina mainland and coastal islands.
- public domain — the status of a literary work or an invention whose copyright or patent has expired or that never had such protection.
- quartodeciman — one of a group of early Christians who observed Easter on the day of the Jewish Passover regardless of whether or not it was Sunday
- radioactinium — the radioactive isotope of thorium having a mass number 227 and a half-life of 18.8 days. Symbol: RdAc, Th 227.
- rough diamond — gemstone: uncut diamond
- semiautomated — partially automated.
- sodium borate — borax1 .
- superdiplomat — a highly skilled or powerful diplomat, a high-ranking diplomat
- superdominant — submediant.
- unaccompanied — not accompanied; alone: The shipment arrived unaccompanied by an invoice.
- uncompanioned — not having a companion; unaccompanied
- uncomplicated — to make complex, intricate, involved, or difficult: His recovery from the operation was complicated by an allergic reaction.
- undomesticate — to make wild
- unimpassioned — not filled with passion or affected by strong emotion
- unmetabolised — not metabolised
- unmetabolized — not metabolized
- up-and-coming — likely to succeed; bright and industrious: an up-and-coming young executive.
- uranium oxide — any of the compounds of uranium and oxygen, as UO 2 , UO 3 , U 4 O 9 , or U 3 O 8 .