v. t. [ L. occludere, occlusum; ob (see Ob-) + claudere to shut. ] 1. To shut up; to close. Sir T. Browne. [ 1913 Webster ]
2. (Chem.) To take in and retain; to absorb; -- said especially with respect to gases; as, iron, platinum, and palladium occlude large volumes of hydrogen. [ 1913 Webster ]