Definition of kidney ore in English:

kidney ore

Line breaks: kid¦ney ore

Entry from British & World English dictionary

noun

[mass noun]
Haematite occurring in rounded, kidney-shaped masses.

Definition of kidney ore in:

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Word of the day meretricious
Pronunciation: ˌmɛrɪˈtrɪʃəs
adjective
apparently attractive but having no real value...