'Goethite' definitions:

Definition of 'goethite'

From: WordNet
noun
A red or yellow or brown mineral; an oxide of iron that is a common constituent of rust [syn: goethite, gothite]

Definition of 'Goethite'

From: GCIDE
  • Gothite \G["o]"thite\, gothite \go"thite\, or Goethite \Goe"thite\, n. [After the poet G["o]the.] (Min.) A hydrous oxide of iron (HFeO2), occurring in prismatic crystals, also massive, with a fibrous, reniform, or stalactitic structure. The color varies from yellowish to blackish brown. [1913 Webster]

Definition of 'goethite'

From: GCIDE
  • goethite \goethite\ n. (Miner.) an oxide of iron.
  • Syn: gothite. [WordNet 1.5]