Definition of nudibranch in English:

nudibranch

noun

Zoology
  • A shell-less marine mollusk of the order "Nudibranchia"; a sea slug.

    • ‘While Antarctic sponges are indeed subject to little, if any, fish predation, they are heavily preyed on by sea stars and nudibranchs.’
    • ‘While the adult nudibranch is correctly identified, the veliger larva is not a nudibranch.’
    • ‘There were dense walls of soft corals, sponges, anemones and hydroids, nudibranchs, creepy-crawlies and lots of fish.’
    • ‘Equally well represented in these waters are invertebrates such as crinoids, nudibranchs and featherduster worms.’
    • ‘The nudibranch Melibe leonina swims by rhythmically flexing its body from side to side at a frequency of I cycle every 2-5 sec.’

Pronunciation:

nudibranch

/ˈn(y)o͞odəˌbraNGk/