25-letter words containing m, a, c, h, i
- phase-contrast microscope — a microscope that utilizes the phase differences of light rays transmitted by different portions of an object to create an image in which the details of the object are distinct despite their near-uniformity of refractive index.
- polymerase chain reaction — a technique in which a known DNA sequence is synthesized at high temperatures by means of a polymerase, producing millions of copies for statistical analysis: used in DNA fingerprinting, in detecting minute quantities of cancer cells, etc.
- rate monotonic scheduling — (algorithm) A means of scheduling the time allocated to periodic hard-deadline real-time users of a resource. The users are assigned priorities such that a shorter fixed period between deadlines is associated with a higher priority. Rate monotonic scheduling provides a low-overhead, reasonably resource-efficient means of guaranteeing that all users will meet their deadlines provided that certain analytical equations are satisfied during the system design. It avoids the design complexity of time-line scheduling and the overhead of dynamic approaches such as earliest-deadline scheduling.
- read someone the riot act — If someone in authority reads you the riot act, they tell you that you will be punished unless you start behaving properly.
- sequential parlog machine — (SPM) The virtual machine (and its machine code) for the Parlog logic programming language.
- stretch one's imagination — If you say that something stretches your imagination, you mean that it is good because it makes you think about things that you had not thought about before.
- sulphate-resisting cement — a type of Portland cement that resists normal concentrations of sulphates: used in concrete for flues and underwater work
- sympathetic introspection — a study of human conduct in which the investigator imagines himself or herself engaged in that conduct.
- the meteorological office — a British Government department supplying weather forecasts
- thermodynamic equilibrium — the condition of an isolated system in which the quantities that specify its properties, such as pressure, temperature, etc, all remain unchanged
- 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 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.
- 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.
- tribasic sodium phosphate — sodium phosphate (def 3).
- 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