Definition of Acrasis
: a genus of cellular slime molds (the type of the family Acrasiaceae) of the order Acrasiales having amoeboid cells produced from spores and aggregated without fusion into a pseudoplasmodium and having a fruiting body, often with a sterile stalklike portion, formed by rounding up and contraction of the pseudoplasmodium
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of acrasis
borrowed from New Latin, from a- 2a- + Greek krásis “mixing, combination” (alluding to the lack of cellular fusion when forming fruiting bodies)
First Known Use: 1890
Seen and Heard
What made you want to look up Acrasis? Please tell us where you read or heard it (including the quote, if possible).