SINCE 1828
Lyssacina
plural noun
Lys·sa·ci·na
| \ ˌlisəˈsīnə\
Definition of Lyssacina
in some classifications
: an order of Hyalospongiae comprising those members of the Hexasterophora with spicules separate or incompletely fused — compare dictyonina
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Merriam-Webster unabridged
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