Prokaryotes have only one lipid bilayer- the cell membrane (also known as the plasma membrane). Many prokaryotes also have a cell wall, but the cell wall is composed of proteins or long chain carbohydrates, not lipids.
3. countable noun. A wedge is an object with one pointed edge and one thick edge, which you put under a door to keep it firmly in position. 4. countable noun. A wedge is a piece of metal with a pointed edge which is used for splitting a material such as stone or wood, by being hammered into a crack in the material.
KJV Dictionary Definition: compass. compass. COMPASS, n. 1. Stretch; reach; extent; the limit or boundary of a space, and the space included; applied to time, space, sound, &c. Our knowledge lies within a very narrow compass. The universe extends beyond the compass of our thoughts.