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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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n. - Genus of chiefly tropical American trees having fragrant wood and yielding gum elemi.

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Usage examples (27)
  • The ordinary isotope of hydrogen, H, is known as Protium, the other two isotopes are Deuterium (a proton and a neutron) and Tritium (a protron and two neutrons).
  • Protium, which is registered in the Cayman Islands, will be run by two former executives of Barclays investment management division Barclays Capital Stephen King and...
  • The melting and boiling points of parahydrogen are about 0. 1°C lower than those of normal hydrogen. isotope of hydrogen, H, is known as Protium, the other two isotopes...
  • Protium grandiflorum is a common dominant along the river.
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The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.