| In order to estimate the population density we divide the estimated abundance by the effective sample area. |
| It is the secret, the mystery of quicksilver, that a metal of such enormous density can yet remain liquid. |
| The idea of lush fertility is further emphasized by the density of the well-watered clover crop that fully occupies a quarter of the foreground. |
| The risk of sensitization to acarids is proportional to their density in the patient's home environment. |
| The surface tension of water is increased, and even the density of air surrounding the Earth ebbs and flows like the tides in the sea. |
| Bone mineral density of the lumbar spine and proximal femur were measured with dual energy x ray absorptiometry. |
