- any of a group of proteins, as myosin, occurring in plant and animal tissue, insoluble in pure water but soluble in dilute salt solutions and coagulable by heat.
- any of several groups of blood plasma proteins, divided into fractions, as alpha, beta, or gamma globulin, depending on electrophoretic mobility.
Origin of globulin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for globulin
The other globulin, serum-globulin, is not coagulated until 75C.
Globulin has been reported by Hellmich in an undetermined bacterium, but is certainly not commonly found.The Fundamentals of Bacteriology
Charles Bradfield Morrey
Paraglobulin, par-a-glob′ū-lin, n. a globulin found in blood-serum, fibrino-plastin.
The globulin in the body could not remain in solution if there were not always present a small quantity of salt in the blood.
Other forms of protein are globulin and myosin, which form the actual muscle-substance.
- any of a group of simple proteins, including gamma globulin, that are generally insoluble in water but soluble in salt solutions and coagulated by heat
C19: from globule + -in
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
- Any of a family of proteins that are precipitated from plasma by ammonium sulfate and may be further fractionated into many subgroups that differ with respect to associated lipids or carbohydrates.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A major class of proteins found in the seeds of plants and in various tissues and substances of vertebrate and invertebrate animals, including blood, muscle, and milk. The globulins in blood comprise all the plasma proteins besides albumin. Two kinds, alpha and beta globulin, are primarily transport proteins or serve as substrates for forming other substances, and include lipoproteins and enzymes. A third kind, the gamma globulins, consists almost entirely of the immunoglobulins. Most globulins are insoluble in water but soluble in saline solution.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.