diurnal

03Dec07

di·ur·nal
adj.

1. Relating to or occurring in a 24-hour period; daily.
2. Occurring or active during the daytime rather than at night: diurnal animals.
3. Botany. Opening during daylight hours and closing at night.

n.

1. A book containing all the offices for the daily canonical hours of prayer except matins.
2. Archaic.
1. A diary or journal.
2. A daily newspaper.

[Middle English, from Late Latin diurnālis, from Latin diurnus, from diēs, day.]

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