IMPERFORATE
Source: 566, 567
imperforate. Imperforate, a. not pierced or bored through
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{ Im‐per″fo‐rate (?), Im‐per″fo‐ra″ted (?), } a. [[L. pref. im- not + perforatus, p. p. of perforate to perforate. See Perforate.]] Not perforated; having no opening or aperture. Sir J. Banks.