Definition of "adduct" []

• Physiology To draw inward toward the median axis of the body or toward an adjacent part or limb. (verb-transitive)
• Chemistry A chemical compound that forms from the addition of two or more substances. (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.

• "At that time Alex was studying the role of mono-ubiquitination of histones (for the histone-ubiquitin adduct H2A known also as protein A24 or uH2A, see above)."
• "These researchers reported that at the non-permissive temperature, the cell lost the histone H2A-ubiquitin adduct."
• "These bases can be chemically modified in a number of ways, including by alkylation, in which an alkyl group (or "adduct") is transferred onto a guanine base."