calash

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A light carriage with two or four low wheels and a collapsible top.
2. n. A top for this or a similar carriage.
3. n. A woman's folding bonnet of the late 18th century.

Century Dictionary and Cyclopedia

1. To furnish with a calash.
2. n. A primitive one-horse springless cart of the island of Nantucket, Massachusetts, house-chairs being used for seats. It is still used to a limited extent.
3. n. A light carriage with low wheels, either open or covered with a folding top which can be let down at pleasure. The Canadian calash is two-wheeled, and has a seat on the splashboard for the driver.
4. n. The folding hood or top usually fitted to such a carriage. Specifically called a calash-top.—3. A hood in the form of a calash-top worn by women in the eighteenth century and until about 1810. It was very large and full, to cover the head-dresses of the period, and was made on a framework of light hoops, capable of being folded back on the shoulders, or raised, by pulling a ribbon, to cover the head and project well over the face. Similar hoods had been worn at earlier times, but the reintroduction under this name appears to date from 1765.

Wiktionary

1. n. A sort of light 'convertible' carriage with a folding hood.

GNU Webster's 1913

1. n. A light carriage with low wheels, having a top or hood that can be raised or lowered, seats for inside, a separate seat for the driver, and often a movable front, so that it can be used as either an open or a closed carriage.
2. n. In Canada, a two-wheeled, one-seated vehicle, with a calash top, and the driver's seat elevated in front.
3. n. A hood or top of a carriage which can be thrown back at pleasure.
4. n. A hood, formerly worn by ladies, which could be drawn forward or thrown back like the top of a carriage.

WordNet 3.0

1. n. the folding hood of a horse-drawn carriage
2. n. a woman's large folded hooped hood; worn in the 18th century