stiffener

noun

stiff·​en·​er -f(ə)nə(r) 

plural -s

: one that stiffens: such as

a

: a worker who sizes hats

b

: something (such as buckram or a piece of paperboard) used for stiffening a manufactured article

specifically : counter entry 5 sense 5

c

: any of a number of vertical angles secured at intervals across the entire width of the web of a large plate girder to prevent buckling

d

: an angle iron, channel, or other structural shape used to increase the rigidity of plating on a ship's bulkhead

called also stiffening bar

e

: a structural member other than a flat sheet used to reinforce the frame of an aircraft compare stringer

f

: an alcoholic bracer

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now