#initial-load-header-loader { visibility: hidden!important; } #initial-load-content { visibility: visible!important; } .expandable .expandable-control { display: none!important; } .expandable .expandable-content { display: block!important; visibility: visible!important; max-height: none!important; height: auto!important; }

contactant

[kuh n-tak-tuh nt]

noun Medicine/Medical.

any substance that might induce an allergy by coming in contact with the skin or a mucous membrane.

Origin of contactant

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

contactant in Medicine

contactant

[kən-tăk′tənt]

n.

Any of a group of allergens that elicit manifestations of induced sensitivity by direct contact with the skin or mucosa.

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