Any dendrite in a dendritic tree that emerges near the basal pole of a neuron (e.g. in bipolar neurons, basal dendrites are either on the same side of the soma as the axon, or project toward the axon), and which is farthest away from the neuronal cell body (the soma).
Source:
GOC:bc,
PMID:22683681,
PMID:17046728,
GOC:aruk,
PMID:9214543,
PMID:1720142,
PMID:20629984