โCoffee, the favorite drink of the civilized world.โ โ Thomas Jefferson, third president of the United States
francium, Fr, atomic number
(noun) a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
Source: WordNet® 3.1
francium (usually uncountable, plural franciums)
The chemical element (symbol Fr) with an atomic number of 87. It is an intensely radioactive alkali metal that is not found in nature.
(countable) A single atom of this element.
• actinium-K (obsolete)
• virginium (obsolete)
Source: Wiktionary
28 December 2024
(noun) small asexual fruiting body resembling a cushion or blister consisting of a mat of hyphae that is produced on a host by some fungi
โCoffee, the favorite drink of the civilized world.โ โ Thomas Jefferson, third president of the United States