protoplast(n = noun.body) energid - a biological unit consisting of a nucleus and the body of cytoplasm with which it interacts;
is a kind of body part
is a part of cell

1.  The thing first formed; that of which there are subsequent copies or reproductions; the original. [1913 Webster]

2.  A first-formed organized body; the first individual, or pair of individuals, of a species. [1913 Webster]
"A species is a class of individuals, each of which is hypothetically considered to be the descendant of the same protoplast, or of the same pair of protoplasts." [1913 Webster]

protoplast, n. the protoplasm of one cell.

Derivative:
protoplastic adj.

Etymology:
F protoplaste or LL protoplastus f. Gk protoplastos (as PROTO-, plasso mould)

N  prototype, original, model, pattern, precedent, standard, ideal, reference, scantling, type, archetype, antitype, protoplast, module, exemplar, example, ensample, paradigm, lay-figure, text, copy, design, fugleman, keynote, die, mold, matrix, last, plasm, proplasm, protoplasm, mint, seal, punch, intaglio, negative, stamp, a precedent embalms a principle, exempla sunt odiosa.