[ glob-yuh-lin ]

  1. 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.

  2. any of several groups of blood plasma proteins, divided into fractions, as alpha, beta, or gamma globulin, depending on electrophoretic mobility.

Origin of globulin

First recorded in 1825–35; globule + -in2

Words Nearby globulin Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use globulin in a sentence

  • Besides these mentioned, milk contains traces of another proteid of similar composition called globulin.

    The Bacillus of Long Life | Loudon Douglas
  • The globulin in the body could not remain in solution if there were not always present a small quantity of salt in the blood.

    Encyclopedia of Diet | Eugene Christian
  • Other forms of protein are globulin and myosin, which form the actual muscle-substance.

    Encyclopedia of Diet | Eugene Christian
  • globulin has been reported by Hellmich in an undetermined bacterium, but is certainly not commonly found.

    The Fundamentals of Bacteriology | Charles Bradfield Morrey

British Dictionary definitions for globulin


/ (ˈɡlɒbjʊlɪn) /

  1. 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

Origin of globulin

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

Scientific definitions for globulin


[ glŏbyə-lĭn ]

  1. 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.