A source from which useful energy can be extracted or recovered either directly or by means of a conversion or transformation process (e.g. solid fuels, liquid fuels, solar energy, biomass, etc.)

(astronomy) Any astronomical object that emits radio waves.

(software, slang, derogatory) open source computer software that is buggy, unstable, or lacking features.

Within a conceptual metaphor, the conceptual domain from which metaphorical expressions are drawn.

(general scholarship and historiography) A selection, distillation, summary or compilation of primary sources, secondary sources, or both.

(computing) A technology that handles access to computer files containing source code so that several users can work on the files without interfering with each other's changes.

simple past tense and past participle of open-source

present participle of open-source

(translation studies) The original text from which a translation is done into another language, often abbreviated as ST.

simple past tense and past participle of open source