Completely still with no waves and no wind.
The condition of a perfectly flat sea with no waves and no wind.
Calm, undisturbed, peaceful, serene.
Pertaining to the halcyon or kingfisher.
The dead body of such a bird, said in Tudor times to act as a weather vane when hung from a beam.
A kingfisher whose nesting by the sea was said, in classical mythology, to cause the Gods to restrain the wind and waves.
A tropical kingfisher of the genus Halcyon, such as the sacred kingfisher (Halcyon sancta) of Australia.