As an adjective microseme
is (anatomy) having the orbital index relatively small; having the orbits broad transversely.
As a noun microsome is
a vesicle formed as an artifact of cell disruption.
microseme
English
Adjective
(
en adjective)
(anatomy) Having the orbital index relatively small; having the orbits broad transversely.
microsome
Noun
(
en noun)
A vesicle formed as an artifact of cell disruption
References
* http://www.nlm.nih.gov/cgi/mesh/2007/MB_cgi?mode=&term=Microsomes&field=entry