原子の定義と意味 - メリアム・ウェブスター

ATOMIC Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition Definition Synonyms Example Sentences Word History Phrases Containing Rhymes Entries Near Cite this Entry Citation Kids Definition Kids More from M-W Show more Show more Citation Kids More from M-W Save Word To save this word, you'll need to log in. Log In atomic adjective atom·​ic ə-ˈtä-mik Synonyms of atomic 1 a : of, relating to, or concerned with atoms atomic physics b : nuclear sense 2 atomic energy 2 a : marked by acceptance of the theory of atomism b : atomistic sense 2 3 : minute 4 of a chemical element : existing in the state of separate atoms atomically ə-ˈtä-mi-k(ə-)lē adverb Synonyms of atomic Relevance tiny minuscule microscopic miniature See All Synonyms & Antonyms in Thesaurus Examples of atomic in a Sentence made atomic adjustments to the clock's mechanism to keep it from whirring as it ran Recent Examples on the Web Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback . Through this, the internal atomic interactions that drive the material’s superior energy storage and sensing were mapped. — Mrigakshi Dixit, Interesting Engineering , 30 Apr. 2026 An atomic chandelier hovers above the dining area. — Kristine Hansen, Architectural Digest , 30 Apr. 2026 The United States and Iran clashed over Tehran’s nuclear program as a review of the treaty meant to prevent the spread of atomic weapons got underway Monday at the United Nations, a confrontation almost certain to be repeated during the monthlong meeting. — ABC News , 27 Apr. 2026 For decades, the government offered some compensation to people with qualifying illnesses who had participated in atomic weapons testing or lived in certain areas when the tests occurred. — Becca Savransky, Idaho Statesman , 26 Apr. 2026 See All Example Sentences for atomic Word History First Known Use 1678, in the meaning defined at sense 1a Time Traveler The first known use of atomic was in 1678 See more words from the same year Phrases Containing atomic atomic bomb atomic clock atomic energy atomic force microscope atomic layer deposition atomic mass atomic mass unit atomic number atomic pile atomic reactor atomic theory atomic weight gram - atomic weight Rhymes for atomic adamic anomic islamic meramec tokamak anatomic antidromic astronomic autonomic cryptogamic diatomic economic See All Rhymes for atomic Browse Nearby Words atom beam atomic atomic absorption spectrometer See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Atomic.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/atomic. Accessed 5 May. 2026. Copy Citation Kids Definition atomic adjective atom·​ic ə-ˈtäm-ik 1 : of, relating to, or concerned with atoms, atomic bombs, or nuclear energy atomic physics the atomic age atomic energy 2 : extremely small 3 : found in the state of separate atoms atomic hydrogen More from Merriam-Webster on atomic Nglish: Translation of atomic for Spanish Speakers Last Updated: 2 May 2026 - Updated example sentences Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Merriam-Webster unabridged More from Merriam-Webster Word of the Day augur See Definitions and Examples » Get Word of the Day daily email! Popular in Grammar & Usage See More More Commonly Mispronounced Words 5 Verbal Slip Ups and Language Mistakes Is that lie 'bald-faced' or 'bold-faced'? The Difference Between 'i.e.' and 'e.g.' Why is '-ed' sometimes pronounced at the end of a word? See More Popular in Wordplay See More The Longest Long Words List 9 Other Words for Beautiful The Words of the Week - May 1 Was 'nervous Nellie' a Real Person? 12 Lovely and Unusual Words for the Natural World See More Popular See More More Commonly Mispronounced Words The Longest Long Words List 9 Other Words for Beautiful See More Games & Quizzes See All Quordle Can you solve 4 words at once? Play Blossom Pick the best words! Play The Missing Letter A daily crossword with a twist Play Name That Tree! A quiz that’s all bark, no bite. Take the quiz See All