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Related to miracidium: sporocyst, cercariae, Metacercariae, rediae


 (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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Trematode eggs were on average 30 x 16 [micro]m sized, capped, and contained a miracidium. Copro-antigens of Giardia spp.
The miracidium must then pass through an intermediate snail host, before the next larval stage of parasite; the furcocercous cercariae emerges that can infect a new mammalian host by directly penetrating the skin (Soulsby, 1982, Bhatia et al., 2010).
The miracidium, upon release from the egg, will infect a susceptible snail host and internally will continue to develop into sporocyst form, transforming into the redia where a mass of cercarial stages is enclosed.
[4], the sensitivity and specificity of a variety of diagnostic tests (questionnaires, reagent strips, egg filtration, polymerase chain reaction (PCR), antibody-based assays, miracidium hatching test, and rapid diagnostic tests for S.
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.
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).
miracidium, cercaria, metacercaria and mesocercaria (Esch & Fernandez, 1994; Esch, Barger & Fellis, 2002).
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.