:10
:09
:08
:07
:06
:05
:04
:03
:02
:01
| precipitation consisting of small, slowly falling crystals of ice |
| a storm warning given for winds with speeds exceeding 63 knots (72 mph, 32 m/sec) when the source of the winds is a tropical cyclone |
halo ha·lo (hā'lō)
n. pl. ha·los or ha·loes
A reddish yellow ring surrounding the optic disk, caused by an expansion of the scleral ring that makes the deeper structures visible.
Glaucomatous halo.
A ring of light surrounding a luminous body.
halo- or hal-
pref.
Salt: halophilic.
Halogen: halide.
| halo (hā'lō) Pronunciation Key
A hazy ring of colored light in the sky around the Sun, Moon, or a similar bright object. A halo is caused by the reflection and refraction of light through atmospheric ice crystals. |