Primary



GRE Barron TOEFL 考研

解释

GRE 红宝书

• adj. 首要的;起初的
• ［英］ adj. 首要的 ( chief; main; principal) ; 起初的 ( earliest in time)

Webster Collegiate

I. adjective

• Etymology: Middle English, from Late Latin primarius basic, primary, from Latin, principal, from primus
• Date: 15th century
• 1. first in order of time or development ; primitive <the primary stage of civilization><the primary lesion of a disease>
• 2.
  • a. of first rank, importance, or value ; principal <the primary purpose>
  • b. basic, fundamental <security is a primary need>
  • c. of, relating to, or constituting the principal quills of a bird's wing
  • d. of or relating to agriculture, forestry, and the extractive industries or their products
  • e. expressive of present or future time <primary tense>
  • f. of, relating to, or constituting the strongest of the three or four degrees of stress recognized by most linguists <the first syllable of basketball carries primary stress>
• 3.
  • a. direct, firsthand <primary sources of information>
  • b. not derivable from other colors, odors, or tastes
  • c. preparatory to something else in a continuing process <primary instruction>
  • d. of or relating to a primary school <primary education>
  • e. of or relating to a primary election <a primary candidate>
  • f. belonging to the first group or order in successive divisions, combinations, or ramifications <primary nerves>
  • g. directly derived from ores <primary metals>
  • h. of, relating to, or being the amino acid sequence in proteins <primary protein structure>
• 4. resulting from the substitution of one of two or more atoms or groups in a molecule <a primary amine>; especially being or characterized by a carbon atom having a bond to only one other carbon atom
• 5. of, relating to, involving, or derived from primary meristem <primary tissue><primary growth>
• 6. of, relating to, or involved in the production of organic substances by green plants <primary productivity>
• 7. providing primary care <a primary physician>

II. noun (plural -ries)

• Date: 1656
• 1. something that stands first in rank, importance, or value ; fundamental — usually used in plu

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