Approximately, about, around (typically in relation to time)

A surname.

The "internal body clock" that regulates the (roughly) 24-hour cycle of biological processes in animals and plants.

(biology) of, relating to, or showing rhythmic behaviour with a period of 24 hours; especially of a biological process

Disruption to the body's biological clock caused by a sudden shift in daily rhythm.

A North Caucasian language group spoken in Circassia in North West Caucasus Russia. / The Adyghe, Kabardian, Ubykh languages.

A native or inhabitant of Circassia (historical) (nowadays shared by Adygea, Kabardino-Balkaria and Karachay-Cherkessia), including the Adyghes and Ubykhs.

Of or pertaining to Circassia or Circassians.

(biology) Occurring or having cycles of approximately annual periodicity

plural of Circassian