Definition of gregarine in US English:

gregarine

adjective

Zoology
  • 1Relating to a group of microscopic, wormlike protozoans that are internal parasites of insects, annelids, and other invertebrates.

    • ‘The students established beetle populations with and without gregarine infection and then monitored the population over time.’
    • ‘Aseptate gregarine fauna have been reported from various parts of the world including India.’
    • ‘In Jodi's case, she was looking at some of the effects of host intestinal environment on gregarine metabolism and survival.’
    • ‘We have used a number of different systems, but most often these have involved the helminth communities of frogs and small fish, insects and their gregarine parasites, and more recently, nematomorphs.’
    • ‘These were determined to be the trophozoites of a gregarine parasite of the insect, and the present paper records the observations which have been made on this species.’
    1. 1.1 (of movement) slow and gliding, as seen in gregarines.

noun

Zoology
  • A gregarine protozoan.

    Class Gregarina (or subclass Gregarinidia), phylum Sporozoa, kingdom Protista

    • ‘Like the gregarines, however, the life cycle is primarily haploid, with diploidy only occurring before meiosis.’
    • ‘The cytoplasm of the gregarines was always irregular, dense, and occasionally presenting a dark stoch area.’
    • ‘This mode of infection probably explains why heavy infections in this gregarine are rare, even in crowded cultures of roaches?’
    • ‘Ciliates are alveolate protozoa that evolved unusually large cell sizes entirely differently from gregarines, with radically novel consequences for their genomes.’
    • ‘Figure 1 shows the prevalence of these gregarines in adult damselflies during the summer and early fall of this year.’
    • ‘The gregarine is compared with other species in the genus Leidyana reported from different hosts to establish its distinctiveness.’

Origin

Mid 19th century: from modern Latin Gregarina, from Latin gregarius (see gregarious).

Pronunciation

gregarine

/ˈɡreɡəˌrīn/