loci

[ loh-sahy, -kee, -kahy ]
/ ˈloʊ saɪ, -ki, -kaɪ /

noun

plural of locus.

Definition for loci (2 of 3)

locus

[ loh-kuh s ]
/ ˈloʊ kəs /

noun, plural lo·ci [loh-sahy, -kee, -kahy] /ˈloʊ saɪ, -ki, -kaɪ/, lo·ca [loh-kuh] /ˈloʊ kə/.

a place; locality.
a center or source, as of activities or power: locus of control.
Mathematics. the set of all points, lines, or surfaces that satisfy a given requirement.
Genetics. the chromosomal position of a gene as determined by its linear order relative to the other genes on that chromosome.

Origin of locus

1525–35; < Latin; OL stlocus a place

Definition for loci (3 of 3)

genius loci

[ gen-i-oo s loh-kee; English jee-nee-uh s loh-sahy, -kahy ]
/ ˈgɛn ɪˌʊs ˈloʊ ki; English ˈdʒi ni əs ˈloʊ saɪ, -kaɪ /

noun Latin.

the guardian spirit of a place.
the distinctive character or atmosphere of a place with reference to the impression that it makes on the mind.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for loci

British Dictionary definitions for loci (1 of 3)

loci

/ (ˈləʊsaɪ) /

noun

the plural of locus

British Dictionary definitions for loci (2 of 3)

genius loci

/ Latin (ˈdʒiːnɪəs ˈləʊsaɪ) /

noun

the guardian spirit of a place
the special atmosphere of a particular place

Word Origin for genius loci

genius of the place

British Dictionary definitions for loci (3 of 3)

locus

/ (ˈləʊkəs) /

noun plural loci (ˈləʊsaɪ)

(in many legal phrases) a place or area, esp the place where something occurred
maths a set of points whose location satisfies or is determined by one or more specified conditionsthe locus of points equidistant from a given point is a circle
genetics the position of a particular gene on a chromosome

Word Origin for locus

C18: Latin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for loci

locus

[ lōkəs ]

n. pl. lo•ci (-sī′, -kē, -kī′)

A place; site.
The position that a given gene occupies on a chromosome.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for loci

locus

[ lōkəs ]

Plural loci (sī′, -kē, -kī′)

The set or configuration of all points whose coordinates satisfy a single equation or one or more algebraic conditions.
The position that a given gene occupies on a chromosome.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for loci

locus

plur. loci (loh-seye, loh-keye)

In geometry, the set of all points (and only those points) that satisfy certain conditions; these points form a curve or figure. For example, the locus of all points in space one foot from a given point is a sphere having a radius of one foot and having its center at the given point. The locus of all points in a plane one foot from a given point is a circle having a radius of one foot and having its center at the given point.


The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.