One who, or that which, upgrades. / A facility that upgrades bitumen into synthetic crude oil.

plural of upgrader

Alternative spelling of upgradability

Alternative form of upgradable

plural of upgrade

Third-person singular simple present indicative form of upgrade

An upward grade or slope. / An improved component or replacement item, usually applied to technology / An improvement

Up a slope or grade.

simple past tense and past participle of upgrade

Having had an upgrade; having been improved or enhanced.