crescograph

From Wiktionary, the free dictionary
Jump to navigation Jump to search

English

[edit]
English Wikipedia has an article on:
Wikipedia

Etymology

[edit]

Latin crēscō (to grow) +‎ -graph

Noun

[edit]

crescograph (plural crescographs)

  1. A device for measuring growth in plants.
    • 1920 February, Scientific American Monthly[1], page 120:
      For the detection of variation of growth it was necessary to devise the extremely sensitive balanced crescograph.
    • 1920, Edward Jewitt Wheeler, “Are plant life and animal life essentially the same?”, in Current Opinion[2], volume 69, page 828:
      The magnetic crescograph, invented by the famed Indian botanist, Sir Jagadish Chandra Bose, for this purpose, seems capable of magnifying the highest powers of the microscope a hundred thousand times.
    • 1936, J.C. Squire, The London Mercury, volume 33, page 511:
      His various "crescographs," or growth recorders, have steadily increased in sensitiveness, until in the latest, the magnetic crescograph, we have an instrument which magnifies the movement ten million times.