plural of margin of error

A male employed to run errands. / (management, derogatory) Someone in a responsible position who performs relatively menial tasks for a senior manager.

work

An ermine moth, Yponomeuta evonymella, whose caterpillars build nets that can cover whole bird cherry trees.

A rock that differs from the size and type of rock native to the area in which it rests, usually large and transported there by a glacier.

erosion of soft ground caused by drainage of rain.

Synonym of Planck epoch

Common Era

plural of error message

(UK, informal) A fundamental, simple mistake.