Definition of digenean in English:
digenean
adjective dʌɪˈdʒɛnɪənˌdʌɪdʒɪˈniːəndīˈjēnēən
Zoology Relating to a group of flukes which are internal parasites needing two to four hosts to complete their life cycle.
Compare with monogenean
Example sentencesExamples
- We have recently reported a study of the digenean intestinal parasites of 956 eels captured in the estuarine bays of Arousa and Ferrol in the northwest Iberian Peninsula.
- Nevertheless, the snail and digenean phylogenies do not appear congruent, implying that host switching occurs on evolutionary but not ecological timescales.
- These results indicate that only seventeen out of the 150 or so digenean families are reported in the deep sea.
- The present study demonstrates that digenean parasites induce population structure changes and shorten lifespan of mudsnails, through increasing size-dependent mortality.
- It will be a major source of information in digenean taxonomy for the next several decades.
noun dʌɪˈdʒɛnɪənˌdʌɪdʒɪˈniːəndīˈjēnēən
Zoology A digenean fluke; a trematode.
Subclass Digenea, class Trematoda
Example sentencesExamples
- Occasionally the eggs of some digeneans may also bear filaments, although these are more generally oval in shape, and brown in colour due to quinone-tanning of egg shell components.
- Since only nonovigerous metacercariae were found in the molluscan host, the life cycle in Kuwait Bay conforms with the pattern in tropical waters, where the digenean reaches maturity in fishes.
- In Chile, there are no records of these digeneans in any group of hosts.
- This project is also linked with heavy metal toxicity studies, being carried out in our laboratory on the survival and infectivity of larval digeneans parasitising molluscan intermediate hosts.
- Fifteen species of digeneans are reported from the waters off the islands of the Outer Hebrides, off north-western Scotland.
Origin
1960s: from modern Latin Digenea (from Greek di- 'twice' + genea 'generation, race') + -an.