| 单词 | group |
| 释义 | Word Frequency group(ɡruːp) noun 1. a number of persons or things considered as a collective unit 2. a. a number of persons bound together by common social standards, interests, etc b. (as modifier) group behaviour 3. a small band of players or singers, esp of pop music 4. a number of animals or plants considered as a unit because of common characteristics, habits, etc 5. grammar another word, esp in systemic grammar, for phrase (sense 1) 6. an association of companies under a single ownership and control, consisting of a holding company, subsidiary companies, and sometimes associated companies 7. two or more figures or objects forming a design or unit in a design, in a painting or sculpture 8. a military formation comprising complementary arms and services, usually for a purpose a brigade group 9. an air force organization of higher level than a squadron 10. Also called: radical chemistry two or more atoms that are bound together in a molecule and behave as a single unit a methyl group -CH3 Compare free radical 11. a vertical column of elements in the periodic table that all have similar electronic structures, properties, and valencies Compare period (sense 8)12. geology any stratigraphical unit, esp the unit for two or more formations 13. mathematics a set that has an associated operation that combines any two members of the set to give another member and that also contains an identity element and an inverse for each element 14. blood group verb 15. to arrange or place (things, people, etc) in or into a group or (of things, etc) to form intoa group Word origin C17: from French groupe, of Germanic origin; compare Italian gruppo; see crop |
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