plow earthboard
1Earthboard — Earth board ([ e]rth b[=o]rd ), n. (Agric.) The part of a plow, or other implement, that turns over the earth; the moldboard. [1913 Webster] …
1Earthboard — Earth board ([ e]rth b[=o]rd ), n. (Agric.) The part of a plow, or other implement, that turns over the earth; the moldboard. [1913 Webster] …