reefable, a.
(ˈriːfəb(ə)l)
[f. reef v.1 + -able.]
Capable of being reefed.
| 1909 Westm. Gaz. 26 Oct. 5/1 Instead of having two rigid planes or wings, set one on either side of the body, it has a single transversal span of canvas which is reefable, like that of the sail of a ship. |