Dictionary of molecular biology. 2004.
secondary wall — noun : the portion of a plant cell wall formed internal to and subsequent to deposition of the primary wall after the cell has attained its final size and shape usually constituting most of the cell wall, often being very complex and consisting… … Useful english dictionary
secondary oocyte — n an oocyte that is produced by division of a primary oocyte in the first meiotic division * * * an oocyte in the period between the first and second maturation division; it is derived from a primary oocyte shortly before ovulation by a division… … Medical dictionary
Secondary cell wall — The secondary cell wall is a structure in found in many plant cells, located between the primary cell wall and the plasma membrane. The cell starts producing the secondary cell wall only after the primary cell wall is complete and the cell has… … Wikipedia
Wall Street Crash of 1929 — Black Tuesday redirects here. For other uses, see Black Tuesday (disambiguation). Crowd gathering on Wall Street after the 1929 crash. The Wall Street Crash of 1929 (October 1929), also known as the Great Crash, and the Stock Market Crash of 1929 … Wikipedia
Secondary roots — Root Root, n. [Icel. r[=o]t (for vr[=o]t); akin to E. wort, and perhaps to root to turn up the earth. See {Wort}.] 1. (Bot.) (a) The underground portion of a plant, whether a true root or a tuber, a bulb or rootstock, as in the potato, the onion … The Collaborative International Dictionary of English
secondary thickening — Deposition of secondary cell wall materials which result in an increase in thickness in stems and roots … Glossary of Biotechnology
secondary cell wall — The innermost layer of cell wall, giving rigidity to the cells. Characterized by its highly organized microfibrillar structure, and only formed in certain cells after cell elongation has ceased … Glossary of Biotechnology
secondary livedo reticularis — symptomatic livedo reticularis types associated with other conditions or disorders, most of which involve blood viscosity changes, embolization, or vessel wall disease; the distribution on the skin is usually asymmetrical and patchy. Associated… … Medical dictionary
Wall, Jean — (Jean Wallenstein / December 31, 1900, Paris, France October 24, 1959, Paris, France) After completing his secondary studies in Orléans, he spent some time in a Parisian university. A stage actor from 1922, he entered films in 1931 (La… … Encyclopedia of French film directors
Cell wall — A cell wall is a tough, flexible and sometimes fairly rigid layer surrounding a cell, located external to the cell membrane, which provides the cell with structural support, protection, and acts as a filtering mechanism. A major function of the… … Wikipedia
