sea needle n. 1. [cf. OED sea nettle jellyfish] a small variety of jellyfish (Acalephae sp.) with a painful sting. cf. NETTLE, SEA WASP (Andros, Adelaide)

2. [cf. DJE sea needle a long-spined sea-egg] the sea urchin (Echinus sp.): When them sea needle look up in you foot you better try run to ole man Moxey for he pee on it (Nassau). (Black)