Kymographies

Part of speech: noun

Definitions

1. A technique for recording and visualizing fluid motion through the use of a kymograph
2. A method that captures changes in position over time along a linear path, often used in physiological studies
3. An apparatus and process that documents waveforms and patterns generated by moving fluids in a simplified manner

Etymology: Kymographies is simply the plural of "kymography," so the real story belongs to the word it is built on. Kymography combines the combining form "kymo-," from Greek "kyma," meaning "wave" or "swelling," with the suffix "-graphy," from Greek "graphia," meaning "writing" or "recording." Taken together, the elements describe writing down a wave, which is exactly what the instrument does: a kymograph traces a moving pressure or displacement onto a rotating drum or moving paper, turning a wave into a continuous line. The plural form, with its "-ies" ending, follows the usual pattern for nouns ending in "-y" after a consonant. Its meaning comes from the technique as a whole: each kymographic record is a graph of motion over time, and studying many such records is a kymography.