““Heavily armed non-aviation surface combatant of variable tonnage.””
Except those Japanese ones for which the ‘non-aviation’ does not apply.
You refer to the destroyers that merely look like aircraft carriers?
Come to think of it, the Soviet era Kiev class were officially designated as “heavy aviation cruisers”
This aviation cruiser designation was adopted by the Soviets to apply to several classes of their aircraft carrying ships (Moskova, Kiev, and Kuztnetov) so they could legally transit through the Bosphorus Strait to access the Black Sea under the 1936 Montreux Convention.
The Montreux Convention’s rules are slanted to favor nations that border the Black Sea. So while the Russians to sail very large “aircraft cruisers” through the Straits into the Black Sea, non-bordering states like, for example, the United States, cannot:
However, there are maritime navigation issues that probably preclude taking such large warships through the Strait’s confined and dangerous waters:
https://en.wikipedia.org/wiki/Bosphorus#Maritime