metacryptozoite

met·a·cryp·to·zo·ite

(met'ă-krip'tō-zō'īt),
The exoerythrocytic stage that develops from merozoites formed by the first, or cryptozoite, generation; the cryptozoite and metacryptozoite generations comprise the primary exoerythrocytic stages of malaria development (prepatent period) before infection of red blood cells.
[meta- + G. kryptos, hidden, + zōon, animal]