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Webster 1828 Edition

ppr.

Holding; having capacity to hold; comprehending; comprising; including; inclosing.

containing

present participle of contain
- 2013 May-June, Charles T. Ambrose, “Alzheimer’s Disease”, in American Scientist, volume 101, number 3, page 200:
  Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems— […]. Such a slow-release device containing angiogenic factors could be placed on the pia mater covering the cerebral cortex and tested in persons with senile dementia in long term studies.

containing ‎(plural containings)

(in the plural) contents
- Herman Melville, Pierre
  “Any, – all words are thine, Isabel; words and worlds with all their containings, shall be slaves to thee, Isabel.”