semirigid

[ sem-ee-rij-id, sem-ahy- ]
/ ˌsɛm iˈrɪdʒ ɪd, ˌsɛm aɪ- /
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adjective

not fully rigid; partly rigid.
Aeronautics. noting or pertaining to a type of airship whose shape is maintained by means of a rigid keellike structure and by internal gas pressure.

Origin of semirigid

First recorded in 1905–10; semi- + rigid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for semirigid

British Dictionary definitions for semirigid

semirigid

/ (ˌsɛmɪˈrɪdʒɪd) /

adjective

partly but not wholly rigid
(of an airship) maintaining shape by means of a main supporting keel and internal gas pressure
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012