transitional layer
11Hysteriaceae — (also known as Dothideomycetes, Ascomycotina, Eumycota) are a class of fungi defined by a specialized ascoma termed the hysterothecium. Hysterothecia are dense, persistent carbonaceous structures, distinctly navicular in outline, and bearing a… …
12Burundi — Burundian, adj., n. /boo roon dee/, n. a republic in central Africa, E of the Democratic Republic of the Congo: formerly the S part of the Belgian trust territory of Ruanda Urundi; gained independence on July 1, 1962. 6,052,614; 10,747 sq. mi.… …
13hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… …
14zone — A segment; any encircling or beltlike structure, either external or internal, longitudinal or transverse. SEE ALSO: area, band, region, space, spot. SYN: zona (1) [TA]. [L. zona] …
15Epithelium — This article is about the epithelium as it relates to animal anatomy. For the fungal structure of the same name, see Pileipellis. Epithelium Code TH H2.00.02.0.00001 Epithelium is one of the four basic types of animal tissue, along with… …
16carcinoma — Any of various types of malignant neoplasm derived from epithelial cells, chiefly glandular (adenocarcinoma) or squamous (squamous cell c.); the most commonly occurring kind of cancer. [G. karkinoma, fr. karkinos, cancer, + oma, tumor] Like other …
17Ethiopia — /ee thee oh pee euh/, n. 1. Formerly, Abyssinia. a republic in E Africa: formerly a monarchy. 58,732,577; 409,266 sq. mi. (1,060,000 sq. km). Present boundaries include Eritrea. Cap.: Addis Ababa. 2. Also called Abyssinia. an ancient region in NE …
18human embryology — ▪ biology Introduction the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth. The human body, like that of most animals, develops from a single cell produced by the union of… …
19Soil horizon — Soil samples illustrating horizons (subsoil on right) A soil horizon is a specific layer in the land area that is parallel to the soil surface and possesses physical characteristics which differ from the layers above and beneath …
20pottery — /pot euh ree/, n., pl. potteries. 1. ceramic ware, esp. earthenware and stoneware. 2. the art or business of a potter; ceramics. 3. a place where earthen pots or vessels are made. [1475 85; POTTER1 + Y3] * * * I One of the oldest and most… …
