BioScience Dictionary

 
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Found Absolute time 1 time.

Displaying results 1 to 10.

1. Absolute time
One of the two types of geologic time ( relative time being the other), with a definite age date established mostly by the decay of radioactive elements, although ages may also be obtained by counting tree rings, decay of a specific type of atom, or annual sedimentary layers (such as varves in lakes or layers in a glacier). The term is in some disfavor because it suggests an exactness that may not be possible to obtain.