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Gy

Gy

1 9.5
A unit that measures radiation energy absorbed by one kilogram of material
  • noun
  • /dʒi/
  • Specialized
translation icon : gray
  • When randomized for radiotherapy, the recommended maximum megavoltage dose to the residual breast was 50 Gy in 20-25 daily fractions.
  • Gy in 20 fractions
  • Gy radiotherapy
  • dose of Gy

Examples

  • Over a 6-week period, a total of 75 Gy was applied to the right maxillofacial region.

    Academic text (2003)
  • Fig. 1 indicates that with a rise in radiation up to 5 Gy, an increase in plant height and the number of shoots was observed.

    Academic text (2015)
  • The dose of 7 Gy enhanced shoot length, while 5 Gy augmented root length.

    Academic text (2015)
  • On further increase in concentration from 6 to 10 Gy, there was a gradual decrease in plant height.

    Academic text (2015)
  • Radiation doses to the neck ranged from 50 to 66 Gy.

    Academic text (2008)
  • Consequently, in conventional radiotherapy, from 30 to 40 daily fractions of approximately 2 Gy each are delivered.

    Academic text (2002)
  • 125 (90%) patients received the planned dose of 40 Gy over 4 weeks.

    Academic text (1996)
  • Of the 5 patients who had received a radical dose of radiation (50 Gy), 4 were alive at the last follow-up.

    Academic text (2009)
  • The patient was administered definitive radiotherapy with 46.8 Gy in 26 fractions.

    Academic text (2010)
  • The medical team decided to administer a dose of Gy to the tumor site to ensure effective treatment.

Synonyms

gray
vsGy
  • Specialized
1 8.4

A unit for measuring radiation absorbed by matter

uses the abbreviated unit symbol instead of the full word form

Surface Forms

Gy singular
Gys plural

Etymology

The unit Gy is short for Gray, named after the scientist Louis Harold Gray who studied radiation. It measures how much radiation energy a kilogram of material 'absorbs', so doctors and scientists use it to know how strong a radiation dose is.