# What Is Foci?

Foci is a plural; its singular form is focus. In geometry, the foci are the special points used to construct a variety of curvatures. This fixed point, and its relationship with a directrix, determine a conic section. Foci can also mean centers of interest or activity.
Reference:
foci - Definition [foh-kuhs]
(n.) Central point, as of attention
(v.) To bring into focus
(v.) To become focused
Source: Dictionary.com
Q&A Related to "What Is Foci?"
 The term, foci, is the plural form of the word "focus" This term is usually used in reference to two or more points that are used in finding conic sections. http://answers.ask.com/Reference/Dictionaries/what...
 1. Draw a straight line between the points of the perimeter of the radius that are the farthest apart. 2. Draw a straight line between the points of the perimeter of the radius that http://www.ehow.com/how_8261756_locate-foci-ellips...
 1. Choose a distance from the vertex to the focus. If the distance is negative, the parabola will be inverted, and the focus will be directly below the vertex. Otherwise the focus http://www.ehow.com/how_8513309_write-equation-foc...
 Type your answer here... it is a T2 hyperintense http://wiki.answers.com/Q/What_is_a_T2_hyperintens...
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Foci is a plural; its singular form is focus. In geometry, the foci are the special points used to construct a variety of curvatures. This fixed point, and its ...
The foci, is the center of the activity. It can also be called the main focal point of an idea, or project. ...
The foci, is the center of the activity. It can also be called the main focal point of an idea, or project. ...
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