chrono-, chron- +

1. A phrase, sentence, or inscription, in which certain letters (usually distinguished by size or otherwise from the rest) express by their numerical values a date or epoch.
2. An inscription, sentence, or phrase in which certain numeral letters, usually made especially conspicuous to express a particular date or epoch on being added together; as in: Man of sCience and huManity, Bertrand RusselL’s eXample gIves life eXtra meaning = MCMLXIX or 1969, the year of Bertrand Russell’s death.
3. In horology, the record produced by an instrument that records time intervals; such as, the duration of an event.

1. An instrument for recording time with extreme exactness; also, a watch or clock to which various mechanical devices are attached for the same purpose. It is used in astronomical and other observations, in the timing of races, etc.
2. An instrument for graphic measurement and recording brief periods of time.
3. A highly precise instrument that measures, indicates, and records the elapsed time of an event.
4. A precise time-keeper used for navigational purposes.
5. A highly precise instrument that shows or graphically records time intervals as the duration of an event.

Someone who writes concerning time or the events of time; a chronologer.

Relating to a diagram exhibiting the course of the mean monthly temperature of a place for each hour of the day.

An instrument that records changes in pressure versus time.

One who studies chronology, one who investigates the date and order in time of events; a chronologist.

1. Arranged in the order of time sequence or occurrence.
2. Relating to or dealing with chronology.
3. Chronological age refers to a person's actual age as calculated from birth, as opposed to any age classification based on the rate of mental development.

1. The science of computing and adjusting time or periods of time, and of recording and arranging events in the order of time; computation of time, assignation of events to their correct dates.
2. A chronological table, list, or treatise.
3. The scientific study of time and the sequence of events.

Divination to determine the precise favorable time for some action, formerly practiced especially in China.

1. In horlology, the time of day as indicated by a chronometer set to Greenwich Mean Time.
2. An instrument for measuring time; specifically applied to time-keepers adjusted to keep accurate time in all variations of temperature.
3. Chronometers are said to differ from watches by having a more perfect escapement and a compensation balance, and are used for determining longitude at sea, and for other exact observations.

1. Any method of dating that relies on chronological measurements; such as, calendars, radiocarbon dates, etc.
2. In archaeology, any method of dating that relies on chronological measurements; such as, calendars, radiocarbon dates, etc.

In electronics, an encoder that converts information into digital form by counting electrical pulses.

The art or science of accurately measuring time; or the measurement of intervals of time.

An instrument for measuring the chronaxy or electric reaction of a muscle.

An anticancer treatment based on the timing of drug administration.