Definition of Zygnematales
: an order of green algae (class Chlorophyceae) that include the pond scums and desmids, are distinguished by the absence of asexual reproduction and lack of flagellated reproductive structure, and reproduce sexually by fusion of amoeboid gametes — compare akontae
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.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of zygnematales
New Latin, from Zygnemat-, Zygnema + -ales
Seen and Heard
What made you want to look up Zygnematales? Please tell us where you read or heard it (including the quote, if possible).