Wordnet Synset 15300080-n
http://lila-erc.eu/data/lexicalResources/LatinWordNet/id/LexicalConcept/15300080-n an entity of type: LexicalConcept
the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)
Wordnet Synset 15300080-n