An exception, or something having an exceptional value
Corresponding to something of lower dimension under a birational correspondence.
Forming an exception; not ordinary; uncommon; rare.
Better than the average; superior due to exception or rarity.
An expendable person or object; usually used in the plural.
Designed for a single use; not reusable.
Not essential or mandatory in order to achieve a goal.
Regarded as not worth preserving or saving; able to be sacrificed.
Able to be expended; not inexhaustible.