American Heritage Dictionary
(1)
Century Dictionary
GNU Webster's 1913
WordNet
(2)
Elsewhere on the web
This main cable was semirigid, and really could not be bent into a sufficiently flexible shape to connect directly to the computers.— Citizendium, the Citizens' Compendium - Recent changes [en]
This ship was a semirigid and was of a new shape, the envelope resembling in external appearance— British Airships, Past, Present, and Future
Near the forward end of the unit, a semirigid plastic tube was connected, leading up to the face mask.— Tom Swift and the Electronic Hydrolung
G class was a rigid design which has not been proceeded with, and, with this single exception, all are of a semirigid type in which an essentially non-rigid envelope is reinforced by a metal keel.— British Airships, Past, Present, and Future

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