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单词 ob-
释义

WordReference Random House Learner's Dictionary of American English © 2024
ob-, prefix. 
  1. ob- is attached to roots and means "toward,'' "to,'' "on,'' "over,'' "against'':object, obligate.

Collins Concise English Dictionary © HarperCollins Publishers::
ob- prefix
  1. inverse or inversely: obovate
Etymology: from Old French, from Latin ob. In compound words of Latin origin, ob- (and oc-, of-, op-) indicates: to, towards (object); against (oppose); away from (obsolete); before (obstetric); down, over (obtect); for the sake of (obsecrate); and is used as an intensifier (oblong)
WordReference Random House Unabridged Dictionary of American English © 2024
Ob  (ôb, ob; Russ. ôp),USA pronunciation n. 
  1. Place Namesa river in the W Russian Federation in Asia, flowing NW to the Gulf of Ob. 2500 mi. (4025 km) long.
  2. Place Names Gulf of, an inlet of the Arctic Ocean. ab. 500 mi. (800 km) long.

OB, 
    1. PathologyAlso, ob [Med.]
      • obstetrical.
      • obstetrician.
      • obstetrics.
    2. Show Businessoff Broadway.
    3. opening of books.
    4. ordered back.

ob-, 
  1. a prefix meaning "toward,'' "to,'' "on,'' "over,'' "against,'' orig. occurring in loanwords from Latin, but now used also, with the sense of "reversely,'' "inversely,'' to form Neo-Latin and English scientific terms:object;obligate;oblanceolate.
Also, o-, oc-, of-, op-. 
  • Neo-Latin, Latin ob-
  • Latin, representing ob (preposition); in some scientific terms,
  • Old French)
  • Middle English (

ob., 
    1. he died;
      she died.
      • Latin obiit
    2. incidentally.
      • Latin obiit
    3. oboe.
    4. Meteorologyobservation.

O.B., 
    1. opening of books.
    2. ordered back.
    Also, O/B 
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