Phrase guide

milky sea

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A bioluminescent phenomenon observable on moonless nights, caused by luminous plankton and bacteria, where the sea becomes milky white with a slight glow allowing one to see one's ship. The sea shines from horizon to horizon like a field of fresh snow (when only the surface layers shine) or a cloud (when deeper layers also shine). The phenomenon occurs most often in the Indian Ocean and off Indonesia; and does not require disruption to start shining.

Definition source: English Wiktionary via Wiktextract

Topics: nautical, transport

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Meaning relationships

Synonyms: milky seas

Antonyms: none provided

History

Etymology

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