The meaning of CRUST is the hardened exterior or surface part of bread. How to use crust in a sentence.

In geology, the crust is the outermost solid shell of a planet, dwarf planet, or natural satellite. It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case …

Aug 1, 2023 · The crust is the Earth’s outermost layer and it’s where we live. It has an irregular thickness, varying from about 5 km beneath the oceans (oceanic crust) to about 30 km …

Jun 5, 2025 · Earth’s crust is divided into two types: oceanic crust and continental crust. The transition zone between these two types of crust is sometimes called the Conrad discontinuity.

CRUST definition: 1. a hard outer covering of something: 2. the outside layer of a loaf of bread: 3. a hard outer…. Learn more.

A crust is a hard layer of something, especially on top of a softer or wetter substance.

The solid, outermost layer of the Earth. ♦ The crust that lies underneath the continents is called continental crust, and is approximately 22 to 37 miles (35.4 to 59.6 kilometers) thick.

Jun 22, 2025 · crust (third-person singular simple present crusts, present participle crusting, simple past and past participle crusted) (transitive) To cover with a crust. The whole body is …

Crust generally refers to the hard exterior or outer layer of various objects or substances. The term is most commonly used in geology referring to Earth's outermost layer, or in food to …

There are 19 meanings listed in OED's entry for the noun crust, two of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.