There are 3 definitions of Ru in English:

Ru1

Syllabification: Ru

symbol

The chemical element ruthenium.

Definition of Ru in:

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Word of the day humoresque
Pronunciation: ˌhjuːməˈrɛsk
noun
a short, lively piece of music

There are 3 definitions of Ru in English:

RU2

Line breaks: RU

Entry from British & World English dictionary

abbreviation

1 informal Are you? where RU?
1.1Burundi (international vehicle registration).
[from Ruanda-Urundi (now Rwanda and Burundi)]
1.2Rugby union.

Definition of Ru in:

There are 3 definitions of Ru in English:

RU-4863

Syllabification: RU-486
(also RU 486)

noun

trademark for mifepristone.
More example sentences
  • In the past decade, over 1 million women worldwide have safely used RU486 to end their pregnancies.
  • RU 486, which will be called mifepristone in this country, is a safe, effective method of abortion which can be used during the first nine weeks of pregnancy and may be a possible treatment for fibroid tumors, ovarian cancer, endometriosis, meningioma, and some types of breast cancer.
  • On 26 October 1988 Dr Edouard Sakiz, chairman of Roussel-Uclaf, suspended sales of RU486.