15-letter words containing d, e, l, i, r, u
- uninterruptedly — in a manner that is not broken, discontinued, or hindered
- universal donor — a person with blood of group O.
- unknown soldier — an unidentified soldier killed in battle and buried with honors, the tomb serving as a memorial to all the unidentified dead of a nation's armed forces. The tomb of the American Unknown Soldier, commemorating a serviceman killed in World War I, was established in the Arlington National Cemetery in Virginia in 1921. In 1958, the remains of personnel of World War II and the Korean War were buried alongside the tomb (now called the Tomb of the Unknowns, ). In 1984, a serviceman of the Vietnam War was interred next to the others.
- unpolished rice — a partly refined rice, hulled and deprived of its germ but retaining some bran.
- unrehabilitated — to restore to a condition of good health, ability to work, or the like.
- unskilled labor — work that requires practically no training or experience for its adequate or competent performance.
- upwardly mobile — See under vertical mobility (def 1).
- uralian emerald — demantoid: not a true emerald.
- urinary bladder — a distensible, muscular and membranous sac, in which the urine is retained until it is discharged from the body.
- url redirection — (web) (Or "URL forwarding") When a web server tells the client browser to obtain a certain requested page from a different location. This is controlled by directives in the server's configuration files or a "Location: header output by a CGI script. The web server stores all its documents in a directory tree rooted at some configured directory, known as its "document root". Normally the URI part of the URL (the part after the hostname) is used as a relative path from the document root to the desired file or directory. A redirect directive allows the server administrator to specify exceptions to this general mapping from URL to file name by telling the browser "try this URL instead". The new URL may be on the same server or a different one and may itself be subject to redirection. The user is normally unaware of this process except that it may introduce extra delay while the browser sends the new request and the browser will usually display the new URL rather than the one the user originally requested.
- venus-s--girdle — an iridescent blue-and-green comb jelly, Cestum veneris, having a ribbon-shaped, gelatinous body.
- wheelchairbound — Confined to a wheelchair.
- winter flounder — any of various popular food flatfishes, as Parophrys vetulus of the Pacific (English sole) and Pseudopleuronectes americanus of the Atlantic (winter flounder or blackback flounder)