The story
From the feather-like appearance of some species, reminiscent of antique quill pens.
Etymology from Wiktionary, CC BY-SA 4.0.
sea pen
Today it means: A colonial marine cnidarian of the order Pennatulacea. Full definition →
Today it means: A colonial marine cnidarian of the order Pennatulacea. Full definition →
From the feather-like appearance of some species, reminiscent of antique quill pens.
Etymology from Wiktionary, CC BY-SA 4.0.