1) Cytoplasm within an axon 2) The cytoplasm of a neuron 
Axoplasm is the cytoplasm within the axon of a neuron (nerve cell). Neural processes (axons and dendrites) contain about 99.6% of the cell’s cytoplasm, and 99.7% of that is in the axons. Axoplasm has a different composition of organelles and other materials than that found in the neuron`s cell body (soma) or dendrites. In axoplasmic transport, ....
<cell biology> The cytoplasm of a neuron. ... (12 Mar 1998) ... 
(ak´so-plaz″әm) the cytoplasm of an axon. adj., axoplas´mic., adj.
The cytoplasm of a neuron.
Type: Term Pronunciation: ak′sō-plazm Definitions: 1. Neuroplasm of the axon. Synonyms: axioplasm
cytoplasm within an axon.