Impenetrability

Impenetrability, the name given to that quality of matter whereby two bodies cannot occupy the same space at the same time.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Impanation * Imperative, The Categorical
Immaculate Conception
Immanence
Immensities, Centre of
Immensity, The Temple of
Immermann, Karl Leberecht
Immortality
Immortals
Imogen
Imo`la
Impanation
Impenetrability
Imperative, The Categorical
Imperial Federation
Imperial Institute
Imperialism
Impetigo
Impey, Sir Elijah
Imponderables
Impressionism
Impressment
Impropriation