Definitions for

**"Orthogonality"**The degree of perpendicularity, or squareness, between the two axes in an X-Y or X-Z table This parameter is usually measured in arc-seconds or microradians.

the relation of opposition between things at right angles

the quality of lying or intersecting at right angles

Two vectors of the same length are orthogonal if the sum of the products of their corresponding elements is 0. Note: An experimental design is orthogonal if the effects of any factor balance out (sum to zero) across the effects of the other factors.

This is a property of codes that can be used as spreading codes for direct sequence spread spectrum (DSSS) transmissions. Codes are said to be orthogonal if they sum to zero over a period of time. Orthogonal codes are used for DSSS transmissions because they do not interfere with one another.

A property exhibited between two PN codes whose cross-correlation, a mathematical measure of similarity, is zero. Orthogonality ensures that the two codes will not interfere with one another when present on the same communication channel.

Features of natural and/or artificial bases that in a given set (alphabet) decrease the degree of incorporating non-cognate base pairs.

a) Property of protecting groups or linkers allowing removal, modification or cleavage of one such without affecting others; b) pooling strategy whereby library members are incorporated in more than one pool, and are mixed with a different set of other members in each pool. Thus a hit results in two or more active pools with only one member in common.