- a domesticated South American ruminant, Lama pacos, having long, soft, silky fleece, related to the llama and believed to be a variety of the guanaco.
- the fleece of this animal.
- a fabric or yarn made of it.
- a glossy, commonly black woolen fabric with cotton warp.
- a crepe fabric made of rayon and acetate yarn in imitation of alpaca wool cloth.
- a domesticated cud-chewing artiodactyl mammal, Lama pacos, closely related to the llama and native to South America: family Camelidae. Its dark shaggy hair is a source of wool
- the cloth made from the wool of this animal
- a glossy fabric simulating this, used for linings, etc
- a type of nickel silver used in jewellery
1792, from Spanish alpaca, probably from Aymara allpaca, related to Quechua p’ake “yellowish-red.” The al- is perhaps from influence of Arabic definite article (see almond). Attested in English from 1753 in the form pacos.