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Asymmetron
noun
Asym·me·tron
\āˈsimə‧ˌträn\
Definition of Asymmetron
: a genus of lancelets (family Epigonichthyidae) differing from Branchiostoma in having asymmetrical metapleura and but one series of gonads, the right — compare amphioxus
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Origin and Etymology of asymmetron
New Latin, from Greek, neuter of asymmetros
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