PRION
prion
(noun) (microbiology) an infectious protein particle similar to a virus but lacking nucleic acid; thought to be the agent responsible for scrapie and other degenerative diseases of the nervous system
Source: WordNet® 3.1
Etymology 1
Noun
prion (plural prions)
(molecular biology) A self-propagating misfolded conformer of a protein that is responsible for a number of diseases that affect the brain and other neural tissue.
Etymology 2
Noun
prion (plural prions)
A petrel of the genus Pachyptila.
Synonyms
• (petrel of the genus Pachyptila): pachyptile (rare)
Anagrams
• Ripon, orpin, ponir, porin, proin, rip on, ripon
Source: Wiktionary