Definition

1. Noun:
   • A type of green seaweed: "Sea lettuce" refers to a marine algae, specifically of the genus Ulva, characterized by its bright green color and thin, leaflike fronds.
   • An edible seaweed: It is a seaweed known for being edible, often used in salads, soups, or as a garnish, with a mild, slightly salty flavor.

Usage Examples

• Noun:
  • We collected some fresh sea lettuce from the rocky shore at low tide.
  • The soup was garnished with dried and chopped sea lettuce.
  • Sea lettuce is common in shallow, nutrient-rich waters around the world.

Advanced Usage

• As a culinary ingredient: Often used in gourmet cooking or health food contexts.
  • The chef uses sea lettuce to add a unique oceanic flavor to the dish.
• In ecological contexts: Refers to its role in marine ecosystems, sometimes indicating nutrient pollution when blooms occur.
  • A large bloom of sea lettuce can be a sign of eutrophication in the estuary.

Variants and Related Words

• Ulva (n): The scientific genus name for sea lettuce.
• Green algae (n): The broader biological group to which sea lettuce belongs.
• Laver (n): A related but different type of edible seaweed, often confused with sea lettuce.

Synonyms

• Green laver (though this can refer to specific species).
• Ulva lactuca (n): The scientific name for a common species of sea lettuce.

Related Phrases

• Sea lettuce bloom: A rapid increase in the population of sea lettuce, often in coastal waters.
  • The bay was covered by a sea lettuce bloom, affecting local tourism.

Related Idioms

(This term is highly specific and does not commonly appear in idiomatic expressions.)

Noun

1. seaweed with edible translucent crinkly green fronds