Liberal Dictionary English Dictionary
n.
- An instrument used to measure the diffraction halo of a red blood cell.
- An instrument for measuring ocular halos.
Researchers develop a halometer that tests alterations in night
Front view of the device (halometer). The holes that permit the exit
Cross-sectional view of the device (halometer). | Download
A Halometer DG (face and rear) projection 1, device base; 2, support