Astronautics Vocabulary

The Astronautics Vocabulary is a glossary of terms that pertain to the science and technology of spaceflight. This alphabetical list can be navigated by clicking on the letters A-Z displayed on this page.

Definition of permafrost

Translation: pergélisol

Definition: Perennially frozen ground occurring wherever the temperature remains below 0 °C for several years, whether the ground is actually consolidated by ice or not and regardless of the nature of the rock and soil particles of which the earth is composed.

Other Definition: None

Synonym: None