Penetrate mutually or be interlocked. Synonym:permeate.
2.
Spread or diffuse through. Synonyms:diffuse, imbue, penetrate, permeate, pervade, riddle."Music penetrated the entire building" , "His campaign was riddled with accusations and personal attacks"
... not, like logical parts, by external relations, but in quite a new way, by "synthesis." "Parts" united by synthesis have not the logical characteristics of mutual distinction and externality of relations, they interpenetrate and modify one another. In a series which has duration (such a thing is a contradiction in terms, but the fault lies with the logical form of language which, in spite of its unsatisfactoriness we are driven to employ if we want ... — The Misuse of Mind • Karin Stephen Read full book for free!