See Also: axis, optic(medicine)
optic axis(medicine)
principal optic axis(medicine)
axis(1)(dictionary)
axis(2)(dictionary)
Y-axis(medicine)
Axis(medicine)
Axis(health)
axis(dictionary)
Axis, the(dictionary)

otacoustic (iou) and axis, optic (medicine)


otacoustic (iou)



otacoustic noun & adjective.rare. E17.
[from Greek ot-, ous ear + akoustikos ACOUSTIC.]
A. noun. An instrument to assist hearing. E17-E18.
b. adjective. Used to assist hearing. Only in Dicts. L18-E19.
otacoustical adjective: only in E19.
otacousticon noun = OTACOUSTIC noun E17-E18.

axis, optic (medicine)


axis, optic
<microscopy> The direction, or directions in an anisotropic crystal along which light is not doubly refracted.