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miracidium

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miracidium /mi·ra·cid·i·um/ (mi″rah-sid´e-um) pl. miraci´dia   the first stage larva of a trematode, which undergoes further development in the body of a snail.
Miracidium (plural, miracidia)
The free-swimming larval form in the life cycle of the liver fluke.

miracidium
[mir′əsid′ē·əm] pl. miracidia
Etymology: Gk, meirakidion, youthfulness
the ciliated larva of a parasitic trematode that hatches from an egg and can survive only by penetrating and further developing within a host snail into a maternal sporocyte that produces more larvae.

miracidium [mi″rah-sid´e-um] (Gr.)
the free-swimming larva of a trematode parasite which emerges from an egg and penetrates the body of a snail host.

miracidium
pl. miracidia [Gr.] the free-swimming, ciliated larva of a trematode parasite which emerges from an egg and penetrates the body of a snail host.


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Once the egg encounters fresh water, the developing larva hatches, releasing a single miracidium.
 
 
 
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