Synonyms and Antonyms for sea-urchin

1. sea urchin (n.)

shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells

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2. sea-lettuce family (n.)

thin flat or tubular green algae

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3. sea-green (adj.)

of the color of the sea; bluish green

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4. sea-coast (n.)

the shore of a sea or ocean

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5. sea-purse (n.)

the seaward undercurrent created after waves have broken on the shore

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6. sea-level (adj.)

lying below the normal level

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8. sea (n.)

a division of an ocean or a large body of salt water partially enclosed by land

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9. sea (n.)

anything apparently limitless in quantity or volume

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10. sea (n.)

turbulent water with swells of considerable size

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