Definition of "rho" [rho]

• The 17th letter of the Greek alphabet. See Table at alphabet. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Kleinman had apparently discovered that focusing a beam of radiation on uranium atoms could generate intense showers of particles called rho mesons."
• "To estimate the divergence time within haplogroup P, we first counted the number of substitutions [the parameter 'rho' (ρ)] between each of the CPC98 and DQ124389 samples and an inferred mutationally-equidistant ancestral sequence and multiplied by the previously used rate estimate of ~3,172 years per substitution in the coding region of the mtDNA genome"
• "This system can be used to precisely and reversibly translocate target proteins such as rho-family GTPases to the membrane with micrometer spatial resolution and second time resolution."