apogeotropism

English

Noun

apogeotropism (uncountable)

1. (botany) An apogeotropic tendency.
   • 1880 November 6, Charles Darwin, Francis Darwin, chapter XII, in The Power of Movement in Plants‎^[1], page 555:

     As soon as the faintest ray of light reaches a seedling, heliotropism will guide it through any crack in the soil, or through an entangled mass of overlying vegetation; for apogeotropism by itself can direct the seedling only blindly upwards.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “apogeotropism”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)