| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| the offspring of a zebra and a donkey. |
paracentesis par·a·cen·te·sis (pār'ə-sěn-tē'sĭs)
n.
Surgical puncture or tapping of a fluid-filled body cavity, especially the abdomen, with a hollow needle or trochar to withdraw fluid.