trajectory C2+ Topic:Education & Learning US /trəˈdʒɛktəri/ UK /trəˈdʒɛktəri/ See IPA manual Meanings 1 noun the curved path of a moving object; a course of development The rocket's trajectory carried it neatly into a stable orbit. Thesaurus Synonyms 1 noun · the curved path of a moving... pathcoursearcroutetrackflightcurve Word family Related forms trajectileprojectejectinject Etymology AI details From New Latin trajectoria, from Latin trāiectus, past participle of trāicere ('to throw across'), from trāns ('across') + iacere ('to throw'). trāiectus Latin trāns Latin iacere Latin View etymology graph -> Topics Education & Learning Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # trajectory **Type:** Word **Level:** C2+ **Part of speech:** noun **IPA (US):** /trəˈdʒɛktəri/ **IPA (UK):** /trəˈdʒɛktəri/ ## Meanings 1. the curved path of a moving object; a course of development ## Examples - The rocket's trajectory carried it neatly into a stable orbit. ## Synonyms - path - course - arc - route - track - flight - curve ## Related Forms - trajectile - project - eject - inject ## Roots and Affixes - Root: trāiectus - Root: trāns - Root: iacere ## Etymology From New Latin trajectoria, from Latin trāiectus, past participle of trāicere ('to throw across'), from trāns ('across') + iacere ('to throw'). ## AI Etymology Trajectory is from New Latin trajectoria, from Latin trāiectus, past participle of trāicere ('to throw across'), from trāns ('across') + iacere ('to throw'). Important recorded forms include trāiectus (Latin), trāns (Latin), and iacere (Latin). Morphologically, the word preserves a built structure whose named elements carry the historical sense into English. The modern sense continues the older lexical line without requiring a separate origin. In current use it covers the curved path of a moving object; a course of development. The wider family includes related words such as trajectile, project, eject, and inject. ## Topics - Education & Learning - Word Formation & Derivatives markdown