The Collaborative International Dictionary
Disclusion
Disclusion \Dis*clu"sion\, n. [L. disclusio, fr. discludere,
disclusum, to separate. See Disclose.]
A shutting off; exclusion. [Obs.]
--Dr. H. More.
Wiktionary
disclusion
n. 1 (context obsolete English) A shutting off; exclusion. 2 (context dentistry English) A separation of the teeth when the jaw is slightly opened. 3 (context dentistry English) Especially, a separation of posterior teeth when the lower jaw moves forward, as a natural result of the alignment of the anterior teeth.