sea thong
English
Noun
sea thong (countable and uncountable, plural sea thongs)
- A kind of blackish seaweed (Himanthalia elongata) found on the northern coasts of the Atlantic, with a thong-like forking process rising from a top-shaped base.
References
- “sea thongs”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.