Reference meaning
ironclad
Last updated
a wooden warship of the 19th century that is plated with iron or steel armor
Other meanings
2. adjective
sheathed in iron plates for protection
3. adjective
inflexibly entrenched and unchangeable
Source and scope
This definition is reproduced from Princeton WordNet 3.0, sense 03585551-n, under the WordNet 3.0 License. It has not yet received VocabularyBase editorial review. Read the source and license details.