the nictitating membrane of a horse
Fruit of the hawthorn.
The third eyelid, or nictitating membrane.
In plain English: A haw is a clear inner eyelid some animals have that protects their eyes.
"The desert lizard blinked slowly, its haw protecting its eye from sand."
To stop, in speaking, with a sound like haw; to speak with interruption and hesitation.
To turn towards the driver, typically to the left.
In plain English: To haw means to look over your shoulder toward the person driving.
"He had to haw to see the street sign better."
An imitation of laughter, often used to express scorn or disbelief. Often doubled or tripled (haw haw or haw haw haw).
An instruction for a horse or other animal to turn towards the driver, typically left (See gee).
A topographic and patronymic surname, from given names.