25-letter words containing a, c, h, e, n, i
- thermodynamic temperature — temperature defined in terms of the laws of thermodynamics and not in terms of the properties of any real material. It is usually expressed on the Kelvin scale
- thermoluminescence dating — a method of dating archaeological specimens, chiefly pottery, by measuring the radiation given off by ceramic materials as they are heated.
- thin-layer chromatography — chromatography in which glass plates coated with thin layers of alumina, silica gel, or cellulose are used as an adsorbent.
- to be in the catbird seat — to be in a very good situation
- to call something to mind — If something brings another thing to mind or calls another thing to mind, it makes you think of that other thing, usually because it is similar in some way.
- to catch sight of someone — If you catch sight of someone, you suddenly see them, often briefly.
- to lay claim to something — If you lay claim to something you do not have, you say that it belongs to you.
- to sail close to the wind — If you sail close to the wind, you take a risk by doing or saying something that may get you into trouble.
- track and field athletics — a collection of sporting events that involve running, sprinting, throwing, jumping and walking
- transcendental-philosophy — transcendental character, thought, or language.
- transient ischemic attack — a brief vascular spasm in which a partially blocked artery impedes blood flow to the brain, resulting in symptoms such as impaired vision, dizziness, numbness, or unconsciousness. Abbreviation: TIA.
- undisputed world champion — a boxer who holds the World Boxing Association, the World Boxing Council, the World Boxing Organization, and the International Boxing Federation world championship titles simultaneously
- vertical redundancy check — (storage, communications) (VRC) An error checking method performed on one 8-bit ASCII character, where the 8th bit is used as the parity bit. The resulting parity bit is constructed by XORing the word. The result is a "1" if there is an odd number of 1s, and a "0" if there is an even number of 1s in the word. This method is unreliable because if an odd number of bits are distorted, the check will not detect the error. The Longitudinal Redundancy Check is an improvement.
- war of the grand alliance — the war (1689–97) in which England, the Netherlands, Spain, Sweden, and the Holy Roman Empire in league with Bavaria, Brandenburg, Savoy, and the Palatinate opposed France.