F₄I₁B₃R₁I₁L₁L₁A₁T₁I₁O₁N₁S₁

18 points

FIBRILLATIONS is validvalid

FIBRILLATION, the act of fibrillating [n]

180,309 of 196,601 in NWL2023·also valid in CSW24

FIBRILLATION, uncoordinated contraction of muscle-fibres in the heart [n]

87,948 of 280,887 in CSW24·also valid in NWL2023