miracidium


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Related to miracidium: sporocyst, cercariae, Metacercariae, rediae

mi·ra·cid·i·um

 (mîr′ə-sĭd′ē-əm, mī′rə-)
n. pl. mi·ra·cid·i·a (-ē-ə)
A ciliated larva of a digenetic trematode, which hatches from the egg and enters the first intermediate host, where it develops into a sporocyst or a redia.

[German, from Greek *meirakidion (attested in Latin as mīracidion, one in early adolescence), diminutive of meirax, young girl, young person, lad.]

mi′ra·cid′i·al adj.

miracidium

(ˌmaɪrəˈsɪdɪəm)
n, pl -ia (-ɪə)
(Animals) the flat ciliated larva of flukes that hatches from the egg and gives rise asexually to other larval forms
[C20: New Latin, via Late Latin miracidion, from Greek meirax boy, girl]
ˌmiraˈcidial adj
References in periodicals archive ?
The twenty-six selections that make up the main body of the text are devoted to schistosoma egg, miracidium of schistosoma, schistosoma sporocysts, cercaria of schistosoma, the alimentary tract of schistosoma, and many other related subjects.
The microscopic examination of nasal washings revealed boomerang shaped eggs with terminal spine and fully developed miracidium inside (Fig.
In vitro metamorphosis ofthe miracidium of Fascioloides magna (Bassi, 1875) Ward, 1917.
The individual ovum is home to miracidium larva with cilia that produce proteolytic enzymes which aid the eggs to move either towards the lumen of the bladder or towards the host intestine.
This includes temperature ranging from 23-26oC for development of eggs (Rowcliffe and Ollerenshaw 1960; Thomas 1883 ab) and maximal growth of snails (Kendall 1953) and humidity level upto 90 % caused by plenty of water available facilitates embryonation (Andrew 1999) emergence of miracidium from eggs due to increased activity of cilia (Thomas 1883 ab) and liberation of cercariae from snails (Alicata 1938; Dixon1966).
The sensitivity of these techniques is extremely higher, as positive PCR signals can be obtained from the tissue of a snail penetrated by a single miracidium.
miracidium, cercaria, metacercaria and mesocercaria (Esch & Fernandez, 1994; Esch, Barger & Fellis, 2002).
An infected person will release the eggs of the parasites into the water through urine and faeces, and the eggs hatch to form a motile fonn, the miracidium.
Eggs contain a mature miracidium when shed in urine.