n.
Pronunciation: ˌ mir- ə - ' si-d ē - ə m, ˌ m ī -r ə -
Function: noun
Inflected Form: plural -cid · ia \ -d ē - ə \
Etymology: New Latin, from Greek meirak-, meirax youth, stripling + New Latin -idium
Date: 1898
: the free-swimming ciliated first larva of a digenetic trematode that seeks out and penetrates a suitable snail intermediate host in which it develops into a sporocyst
– mi · ra · cid · i · al \ -d ē - ə l \ adjective