extract vs glean

extract

noun
  • Something that is extracted or drawn out. 

  • A decoction, solution, or infusion made by drawing out from any substance that which gives it its essential and characteristic virtue 

  • Ancestry; descent. 

  • A draft or copy of writing; a certified copy of the proceedings in an action and the judgment therein, with an order for execution. 

  • Any substance extracted is such a way, and characteristic of that from which it is obtained 

  • A solid preparation obtained by evaporating a solution of a drug, etc., or the fresh juice of a plant (distinguished from an abstract). 

  • A portion of a book or document, incorporated distinctly in another work; a citation; a quotation. 

verb
  • To select parts of a whole 

  • To determine (a root of a number). 

  • To take by selection; to choose out; to cite or quote, as a passage from a book. 

  • To draw out; to pull out; to remove forcibly from a fixed position, as by traction or suction, etc. 

  • To withdraw by expression, distillation, or other mechanical or chemical process. Compare abstract (transitive verb). 

glean

noun
  • A collection made by gleaning. 

verb
  • To collect what is left behind (grain, grapes, etc.) after the main harvest or gathering. 

  • To gather information in small amounts, with implied difficulty, bit by bit. 

  • To gather what is left in (a field or vineyard). 

  • To frugally accumulate resources from low-yield contexts. 

How often have the words extract and glean occurred in a corpus of books? (source: Google Ngram Viewer )