semirigid

Definition of Semirigid in English :

1. semirigid

having a form maintained by a rigid internal structure as well as by internal gas pressure

2. semirigid

not fully rigid

WordNet Lexical Database for English. Princeton University. 2010.

Semirigid

adjective

1.

partly but not wholly rigid

2.

(of an airship) maintaining shape by means of a main supporting keel and internal gas pressure

adjective

somewhat or partly rigid; specif., designating an airship having a rigid internal keel but no other supporting framework

adj.

1. Partly or moderately rigid.

2. Being an airship designed with a rigid internal keel but without an internal framework.