Skip to Content
Medical Term:


Pronunciation: mi'ra-sid'e-um, -a


The ciliated first-stage larva of a trematode that emerges from the egg and must penetrate into the tissues of an appropriate intermediate host snail if it is to continue its life cycle; followed by development into a mother sporocyst and by production of a number of offspring of successive larval generations.

[G. meirakidion, boy]

See Also: sporocyst1

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.