microtrabecula
/ˌmʌɪkrə(ʊ)trəˈbɛkjʊlə/Cell Biol.
noun
A (real or artefactual) strand of cytoplasm observed by high voltage electron microscopy and forming part of a three-dimensional network within a cell.
Origin
1970s. From micro- + trabecula. Compare microtrabecular.