Source : Webster's Revised Unabridged Dictionary (1913)

Sea milkwort \Sea" milk"wort`\ (Bot.)
   A low, fleshy perennial herb ({Glaux maritima}) found along
   northern seashores.

Source : WordNet®

sea milkwort
     n : a small fleshy herb common along North American seashores
         and in brackish marshes having pink or white flowers
         [syn: {sea trifoly}, {black saltwort}, {Glaux maritima}]