- apyknomorphous
- Denoting a cell or other structure that does not stain deeply because the stainable or chromophil material is not closely aggregated. [G. a- priv. + pyknos, thick, + morphe, shape, form]
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apyk·no·mor·phous (ə-pik″no-morґfəs) [a-1 + pyknomorphous] not pyknomorphous; not having the stainable cell elements compactly placed; said of certain nerve cells.
Medical dictionary. 2011.