anabaena
noun
an·a·bae·na
| \ ˌan-ə-ˈbē-nə
\
\
Medical Definition of anabaena
1
capitalized
: a genus of freshwater cyanobacteria (family Nostocaceae) having cells in beadlike filaments and often contaminating reservoirs
2
: a cyanobacterium of the genus Anabaena