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词汇 portlandite
释义

Definition of portlandite in English:

portlandite

noun ˈpɔːtləndʌɪt
Mineralogy

  • A mineral of the hexagonal crystal system that is a form of calcium hydroxide that occurs naturally as minute colourless plates and is a common product of the hydration of Portland cement.

Origin

1930s. From the name of Portland + -ite, after Portland cement.

Definition of portlandite in US English:

portlandite

nounˈpɔːtləndʌɪt
Mineralogy

  • A mineral of the hexagonal crystal system that is a form of calcium hydroxide that occurs naturally as minute colourless plates and is a common product of the hydration of Portland cement.

Origin

1930s. From the name of Portland + -ite, after Portland cement.
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