Answer:

medusas

Answer	Crossword Clue
MEDUSAS	Jellyfishes
MEDUSAS	Dome-shaped jellyfish
MEDUSAS	Jellyfish

MEDUSAS	Some jellyfish
MEDUSAS	Saucer-shaped jellyfishes
MEDUSAS	Heads never to behold.
MEDUSAS	Saucer-shaped jellyfish
MEDUSAS	Free-swimming jellyfishes

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.