Chronopedia

advancing

  • (phase shift) Shortening of period for one to a few cycles (sign +).

alpha-α

  • Activity time.

amplitude

  • Difference between maximum (or minimum) and mean value of the rhythmic parameter studied.

annual

  • (Cycle) Event(s) occurring on a yearly basis. Used synonymously with "seasonal cycle"

arophase

  • Phase angle corresponding to the maximal value of the rhythmic parameter studied.

circa

  • (Rhythm) Internal rhythm, free running in constant conditions with a period slightly deviating from the environmental cycle, by which it is synchronized in nature (in contrast to non circa-rhythm).

circa-syzygic

  • See circa-semilunar.

circadian

  • Circa-rhythm with a naturally synchronized period of 24 hours.

circalunadian

  • Circa-rhythm with a naturally synchronized period of 24.8 h (sidereal day or lunar day).

circalunar

  • Circa-rhythm with a naturally synchronized period of the lunar cycle (either synodic cycle 29.53 days, or sidereal cycle 13.66 days).

circannual

  • Circa-rhythm with a naturally synchronized period of a year.

circasemilunar

  • Circa-rhythm with a naturally synchronized period of half the lunar cycle (semi-synodic or syzygic cycle: 14.76 days; semi-sidereal cycle 13.66 days).

circatidal

  • Circa-rhythm with a naturally synchronized period of the prevailing tidal cycle (12.4 h or otherwise).

clock

  • Timing mechanism, in which the parameter studied, is not involved in the causal loop (in contrast to "hourglass").

crepuscular

  • Events occurring twice a day, i.e. at dawn and dusk.

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