| QUANTIFICATION | The measurement of number |
| POLLENCOUNT | Often quoted on weather forecasts, this is the measurement of the number of grains discharged from the male part of a flower, per cubic metre of air (6,5) |
| GEODESY | The branch of science that deals with the measurement of the size and shape of the Earth (7) |
| LENGTH | Distance swum in a swimming pool from one side to the other; or, in racing, the measurement of elapsed time as the horses cross the line (6) |
| HOROLOGY | Art of making clocks/watches; or, the study of the measurement of time (8) |
| SCOVILLE | Pharmacist who devised a scale based on the measurement of the pungency or spiciness of chillies (8) |
| CURIE | Which unit used in the measurement of radioactivity was named after a winner of the Nobel Prize in both Physics and Chemistry (5) |
| SIZE | The measurement of the PSI zenith (4) |
| ERLANG | In telecommunications, what is the measurement of occupancy of a circuit that is named after a Danis |
| CAPSIZE | Overturn the measurement of the bonnet, we hear (7) |
| GEOMETRY | Branch of mathematics concerned with the measurement of points, curves, lines and surfaces |
| THERMOMETRY | The measurement of temperatures |
| HYGROMETRY | The measurement of humidity |
| SPECTROMETRY | The measurement of light's properties |
| SPIROMETRY | The measurement of lung capacity |
| ELECTROMETRY | The measurement of potential or currents |
| GALLON | The measurement of Portugal longitudinally (6) |
| MILEAGE | The measurement of agile me (7) |
| AREAL | Relating to the measurement of a surface |
| SEISMOGRAPHY | The measurement of tremors |
