Yam (vegetable) Yam (vegetable) Yam is the common name for some plant species in the genus "Dioscorea" (family Dioscoreaceae) that form edible tubers. Yams are perennial herbaceous vines cultivated for the consumption of their starchy tubers in many temperate and tropical world regions. The tubers themselves are also called "yams", having numerous cultivars and related species. In parts of the United States and Canada, "yam" is sometimes used to refer to varieties of the unrelated sweet potato ("Ipomoea batatas"). The name, yam, appears to derive from Portuguese "inhame" or Canarian (Spain) "ñame", which derived from West African languages during trade. The main
Varieties of criticism Varieties of criticism There are many varieties of criticism. This article describes common types that occur regularly in everyday life. For other criteria that classify criticisms, see Criticism#Classification of types of criticism. For more subject-specific information, see the pages on topics such as art, film, literature, theatre, or architecture. Aesthetic criticism is a part of aesthetics concerned with critically judging beauty and ugliness, tastefulness and tastelessness, style and fashion, meaning and quality of design—and issues of human sentiment and affect (the evoking of pleasure and pain, likes and dislikes). Most parts of human life have an aesthetic dimension, which means