| n. | 1. | (Zool.) A kingfisher. By modern ornithologists restricted to a genus including a limited number of species having omnivorous habits, as the sacred kingfisher (Halcyon sancta) of Australia. |
| a. | 1. | Pertaining to, or resembling, the halcyon, which was anciently said to lay her eggs in nests on or near the sea during the calm weather about the winter solstice. |
| 2. | Hence: Calm; quiet; peaceful; undisturbed; happy. |
| Noun | 1. | Halcyon - (Greek mythology) a woman who was turned into a kingfisher Synonyms: Alcyone |
| 2. | Halcyon - a large kingfisher widely distributed in warmer parts of the Old World Synonyms: genus Halcyon | |
| 3. | halcyon - a mythical bird said to breed at the time of the winter solstice in a nest floating on the sea and to have the power of calming the winds and waves | |
| Adj. | 1. | halcyon - idyllically calm and peaceful; suggesting happy tranquillity; "a halcyon atmosphere" |
| 2. | halcyon - marked by peace and prosperity; "a golden era"; "the halcyon days of the clipper trade" Synonyms: golden, prosperous |