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dendrochronology
Based on the Greek word for "tree limb", the spelling is dendrochronology (dating tree age by rings).
astronomer A._E._Douglass
philodendron,
dendrochronology,
dendrites,
dendrometer.
Dendrochronology is the science of aging a creature by the use of their teeth. It comes from two Greek words meaning teeth and time. It can be useful for archaeologists and other scientists.