A region of low atmospheric pressure, especially one in which most of the air has been pumped out.

simple past tense and past participle of vacuum-pack

Packed in an airtight container in a partial vacuum.

Emptiness. / Physical emptiness, an absence of matter; vacuum. / Idleness; listlessness. / An empty or inane remark or thing.

A desiccator fitted with a stopcock whereby it can be evacuated

(slang) Expressing that something is lively, sexy, passionate, and/or exciting.

plural of vacuum tube

A state of relative anarchy compared to neighboring states, often caused by death of the head of state before a successor could be designated.

(psychology, rare) The theoretic counterpart to penis envy; the alleged unconscious desire of a man to possess a vagina.

plural of vaccine