| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a scrap or morsel of food left at a meal. |
irreducible ir·re·duc·i·ble (ĭr'ĭ-d&oomacr;'sə-bəl, -dy&oomacr;'-)
adj.
Impossible to reduce to a desired, simpler, or smaller form or amount.
Incapable of being made chemically simpler, or of being replaced, hydrogenated, or reduced in positive charge.