cohesion

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The act, process, or condition of cohering.
• noun Physics The intermolecular attraction by which the elements of a body are held together.
• noun Botany The congenital union of parts of the same kind, such as a calyx of five united sepals.

from The Century Dictionary.

• noun The act or state of cohering, uniting, or sticking together; specifically, in physical, the state in which, or the force by which, the molecules of the same material are bound together, so as to form a continuous homogeneous mass.
• noun In botany, the congenital union of one part with another.
• noun Connection; dependence; affinity; coherence.

from the GNU version of the Collaborative International Dictionary of English.

• noun The act or state of sticking together; close union.
• noun (Physics) That from of attraction by which the particles of a body are united throughout the mass, whether like or unlike; -- distinguished from adhesion, which unites bodies by their adjacent surfaces.
• noun Logical agreement and dependence.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun State of cohering, or of working together.
• noun physics, chemistry Various intermolecular forces that hold solids and liquids together.
• noun biology Growing together of normally distinct parts of a plant.
• noun computing Degree to which different modules in a computing system are functionally dependent on others.
• noun linguistics Grammatical or lexical relationship between different parts of the same text.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun (botany) the process in some plants of parts growing together that are usually separate (such as petals)
• noun the state of cohering or sticking together
• noun (physics) the intermolecular force that holds together the molecules in a solid or liquid