23-letter words containing a, i, r, h, e
- trans-new guinea phylum — the largest grouping of the non-Austronesian languages of Papua and New Guinea and the surrounding regions
- transfer characteristic — the relationship between output and input of an electronic or electromechanical system, esp as depicted graphically
- trigonal trisoctahedron — a trisoctahedron whose faces are triangles.
- unconditional discharge — the release of a defendant without having to spend time on parole or probation
- under the circumstances — a condition, detail, part, or attribute, with respect to time, place, manner,agent, etc., that accompanies, determines, or modifies a fact or event; a modifying or influencing factor: Do not judge his behavior without considering every circumstance.
- united church of canada — the largest Protestant denomination in Canada, formed in the 1920s by incorporating some Presbyterians and most Methodists
- universal character set — (character, standard) (UCS, ISO/IEC 10646) A 1993 ISO and IEC standard character set, also known as "Universal Multiple-Octet Coded Character Set". UCS comes in a 16-bit variant called UCS-2 and a 32-bit variant called UCS-4, which is composed of 16-bit UCS-2 "planes". So far only one 16-bit plane has been defined, which is known as the Basic Multilingual Plane. The implementation of UCS is still in its infancy, though some moves, such as the Java language defining a character to be 16 bits, are suggestive.
- urea-formaldehyde resin — any of a group of resins formed by the interaction of urea and formaldehyde under conditions that include heat and pH control: used chiefly in the manufacture of buttons, baking enamels, and for making fabrics wrinkle-resistant.
- ventricular tachycardia — a cardiac arrhythmia in which the muscles of the ventricles contract irregularly in a rapid, uncoordinated manner, impairing the normal pumping of blood.
- vestibulocochlear nerve — either one of the eight pairs of cranial nerves that supply the cochlea and semicircular canals of the internal ear and contribute to the sense of hearing
- viscount horatio nelson — Viscount Horatio, 1758–1805, British admiral.
- when the chips are down — a small, slender piece, as of wood, separated by chopping, cutting, or breaking.
- white-coat hypertension — the phenomenon of having elevated blood pressure only during a medical consultation
- wholly-owned subsidiary — A wholly-owned subsidiary is a company whose shares are all owned by another company.
- yellow-headed blackbird — a North American blackbird, Xanthocephalus xanthocephalus, having a yellow head.