Source : Webster's Revised Unabridged Dictionary (1913)

Sea chickweed \Sea" chick"weed`\ (Bot.)
   A fleshy plant ({Arenaria peploides}) growing in large tufts
   in the sands of the northern Atlantic seacoast; -- called
   also {sea sandwort}, and {sea purslane}.

Source : WordNet®

Arenaria peploides
     n : perennial succulent herb with small solitary axillary or
         terminal flowers [syn: {seabeach sandwort}]