elmwood-hard tough wood of an elm tree; used for e.g. implements and furniture.elm. elm, elm tree-any of various trees of the genus Ulmus: important timber or shade trees. wood-the hard fibrous lignified substance under the bark of trees.lmwood-hard tough wood of an elm tree; used for e.g. implements and furniture.
Marine Protected Areas (MPAs): Sargasso Sea. Photo 72: Map of Sargasso Sea. (NOAA Photo Library.) The Sargasso Sea is located entirely within the Atlantic Ocean and characterized by the presence of holopelagic Sargassum. Holopelagic Sargassum is free-floating algae that remains in the open ocean for its entire life cycle.
The Sargasso Sea is characterized by a free-floating mass of seaweed, predominately S. natans and S. fluitans, in the western Atlantic Ocean. Sargassum is also known as sea holly because of its highly branched thallus with hollow, berrylike floats (pneumatocysts) and many leaflike sawtooth-edged blades.