S1U1P3E1R1M3O1O1N1
13 points
SUPERMOON is validvalid
a perigeal full moon [n SUPERMOONS]
an instance of the moon appearing particularly large in the sky due to its closest approach to the earth (the perigee) coinciding with a full moon [n -S]
a perigeal full moon [n SUPERMOONS]
an instance of the moon appearing particularly large in the sky due to its closest approach to the earth (the perigee) coinciding with a full moon [n -S]