Bon"net, n. (Automobiles)
The metal cover or shield over the motor.
Bon"net (bŏn"nĕt), n. [OE.
bonet, OF. bonet, bonete. F. bonnet fr. LL.
bonneta, bonetum; orig. the name of a stuff, and of unknown
origin.] 1. A headdress for men and boys; a cap.
[Obs.] Milton. Shak.
2. A soft, elastic, very durable cap, made of
thick, seamless woolen stuff, and worn by men in Scotland.
And p?i?s and bonnets waving high.
Sir W. Scott.
3. A covering for the head, worn by women, usually
protecting more or less the back and sides of the head, but no part of the
forehead. The shape of the bonnet varies greatly at different times;
formerly the front part projected, and spread outward, like the mouth of a
4. Anything resembling a bonnet in shape or
use; as, (a) (Fort.) A small defense work
at a salient angle; or a part of a parapet elevated to screen the other
part from enfilade fire. (b) A metallic canopy,
or projection, over an opening, as a fireplace, or a cowl or hood to
increase the draught of a chimney, etc. (c) A
frame of wire netting over a locomotive chimney, to prevent escape of
sparks. (d) A roofing over the cage of a mine,
to protect its occupants from objects falling down the shaft.
(e) In pumps, a metal covering for the openings in the
5. (Naut.) An additional piece of canvas
laced to the foot of a jib or foresail in moderate winds.
6. The second stomach of a ruminating
7. An accomplice of a gambler, auctioneer, etc.,
who entices others to bet or to bid; a decoy. [Cant]
Bonnet head (Zoöl.), a shark
(Sphyrna tiburio) of the southern United States and West
Indies. -- Bonnet limpet (Zoöl.), a
name given, from their shape, to various species of shells (family
Calyptræidæ). -- Bonnet monkey
(Zoöl.), an East Indian monkey (Macacus sinicus),
with a tuft of hair on its head; the munga. -- Bonnet
piece, a gold coin of the time of James V. of Scotland, the
king's head on which wears a bonnet. Sir W. Scott. --
To have a bee in the bonnet. See under
Bee. -- Black bonnet. See under
Black. -- Blue bonnet. See in the
Bon"net, v. i. To take off the bonnet or
cap as a mark of respect; to uncover. [Obs.] Shak.