Boucle yarn is a loose, three ply yarn with a characteristic curly appearance. Used in weaving, knitting, and crocheting, boucle...
Cold agglutinins are antibodies that cause clumping or agglutination of RBCs at cold temperatures in individuals with certain conditions or who are infected by particular organisms. Cold agglutinins are associated with Mycoplasma pneumoniae infection. M. pneumoniae has i antigen specificity to human RBC membranes. Fetal cells largely contain i antigens, but by 18 mo most cells carry the I antigen.
cross agglutination the agglutination of particulate antigen by an antibody raised against a different but related antigen; see also group agglutination.1. the action of an agglutinant substance. 2. the clumping together in suspension of antigen-bearing cells, microorganisms, or particles in the presence of specific antibodies (agglutinins) . Agglutination reactions.gglutination (ÉglÅÅÂ´tinÄÂ´shÉn) , n the aggregation or clumping together of cells as a result of their interaction with specific antibodies called agglutinins, commonly used in blood typing and in identifying or estimating the strength of immunoglobulins or immune sera.