alpaca

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A domesticated South American mammal (Lama pacos), related to the llama and having fine, long wool.
2. n. The silky wool of this mammal.
3. n. Cloth made from alpaca.
4. n. A coat made of this cloth.
5. n. A glossy cotton or rayon and wool fabric.

Century Dictionary and Cyclopedia

1. n. A mammal, the Auchenia pacos, a native of the Andes, especially of the mountains of Chili and Peru. It is so closely allied to the llama that by some it is regarded rather as a smaller variety than as a distinct species. It has been domesticated, and remains also in a wild state. In form and size it approaches the sheep, but has a longer neck. It is valued chiefly for its long, soft, and silky wool, which is straighter than that of the sheep, and very strong. The fiber is small, very soft, pliable, and elastic, and is woven into fabrics of great beauty. The animal's flesh is wholesome.
2. n. A fabric manufactured from the hair or wool of the alpaca, either wholly or in part, or made in imitation of this, used for clothing in warm climates, for coat-linings, and very largely for umbrellas. The material sold under the name of alpaca for women's dresses and other clothing contains now little if any alpaca-wool; it is a fabric of cotton and wool, with a hard and somewhat shining surface, generally, though not always, dyed black.

Wiktionary

1. n. A sheep-like animal of the Andes, Vicugna pacos, in the camel family, closely related to the llama, guanaco, and vicuña.

GNU Webster's 1913

1. n. (Zoöl.) An animal of Peru (Lama paco), having long, fine, wooly hair, supposed by some to be a domesticated variety of the llama.
2. n. Wool of the alpaca.
3. n. A thin kind of cloth made of the wooly hair of the alpaca, often mixed with silk or with cotton.

WordNet 3.0

1. n. domesticated llama with long silky fleece; believed to be a domesticated variety of the guanaco
2. n. wool of the alpaca
3. n. a thin glossy fabric made of the wool of the Lama pacos, or made of a rayon or cotton imitation of that wool