sea hedgehog
Definition
Noun: - Sea urchin: "sea hedgehog" is an alternative, less common name for a sea urchin, a small, spiny marine animal belonging to the class Echinoidea. It is characterized by a round, hard shell covered in movable spines, resembling a terrestrial hedgehog.
Usage Examples
- (A sea urchin discovered on the shore.)
- (The reproductive parts of a sea urchin are eaten.)
Advanced Usage
- "to be like a sea hedgehog": a metaphorical expression describing someone or something that is prickly or defensive.
- His attitude was like a sea hedgehog, always ready to defend himself. (He was easily offended or guarded.)
Variants and Related Words
Sea urchin (n): the standard term for the same animal, used more widely in biology and common speech.
- The sea urchin uses its spines for protection and movement. (The standard name for the spiny marine creature.)
Hedgehog (n): a small, spiny terrestrial mammal; the land animal that gives the sea hedgehog its name.
- Unlike the sea hedgehog, the land hedgehog is covered in fur and spines. (Comparing the marine and land animals.)
Synonyms
- Sea urchin: the primary and most common name for the animal.
- Echinus: a scientific term for sea urchins, derived from Greek.
Related Idioms
- No common idioms: "sea hedgehog" is a rare term and does not appear in standard idiomatic expressions. The related term "sea urchin" is used in idioms like "to be prickly as a sea urchin" (to be irritable or defensive), but this is informal and not widespread.