afferent neuron vs nerve cell

afferent neuron and nerve cell both are nouns.

Word	Noun	Adjective	Verb	Adverb
afferent neuron	Yes	No	No	No
nerve cell	Yes	No	No	No

As nouns, nerve cell is a hypernym of afferent neuron; that is, nerve cell is a word with a broader meaning than afferent neuron:

afferent neuron: a neuron conducting impulses inwards to the brain or spinal cord
nerve cell: a cell that is specialized to conduct nerve impulses

Other hypernyms of afferent neuron include neuron.

afferent neuron (noun)	nerve cell (noun)
a neuron conducting impulses inwards to the brain or spinal cord	a cell that is specialized to conduct nerve impulses