(astronomy) A relatively small (sand- to boulder-sized) fragment of debris in a star system that produces a meteor when it hits the atmosphere

US spelling of square metre.

(linguistics, translation studies, critical theory) Any language or vocabulary of specialized terms used to describe or analyze a language or linguistic process

(physics) An instrument that measures the local acceleration due to gravity (strength of the gravitational field).

A means of contraception involving an impenetrable barrier, such as a diaphragm or condom, between sexual partners.

A metallic or stony object or body that is the remains of a meteoroid.

A change in nature, form, or quality.

Pertaining to or characterized by a metaphor; figurative; symbolic.

A gas hydrate that contains methane as the guest molecule; It occurs both in deep sedimentary structures, and as outcrops on the ocean floor.

A gas hydrate that contains methane as the guest molecule; it occurs both in deep sedimentary structures, and as outcrops on the ocean floor.