Definition of suctorial in English:

suctorial

Line breaks: suc|tor¦ial
Pronunciation: /sʌkˈtɔːrɪəl
 
/

adjective

chiefly Zoology
  • 1Adapted for sucking (as, for example, the mouthparts of some insects): a suctorial proboscis
    More example sentences
    • Tadpoles do have several rows of denticles, as well as a large, ventrally placed, suctorial oral disk - a suction-cup shaped mouth with which it clings to rocks in fast water.
    • The tadpoles of Amolops species are torrent-adapted, and have suctorial disks on their bellies.
    • The larvae have suctorial discs and reduced tail fins, which presumably are adaptations for living in swift flowing streams.
  • 1.1(Of an animal) having a sucker for feeding or adhering to something: suctorial insects
    More example sentences
    • One explanation is that suctorial insect growth was limited by the phenology of the host plant and not just by climate.
    • This group includes the suctorial lice, confined to mammals; they are strictly parasitic insects, being confined to their hosts constantly and deriving all their nourishment from them.
    • Extremes in this case are represented by suctorial species, Poyntonia paludicola, and various semiterrestrial forms (e.g., Arthroleptides, Cycloramphus, Nannophrys, and Thoropa).

Derivatives

suctorially

adverb
More example sentences
  • Based on radular and soft-tissue morphology and personal observation of feeding behaviors, it appears that species from both regions feed suctorially with the assistance of a diminutive radula.
  • The Opisthobranch molluscs Elysia timida, E. translucens, Thuridilla hopei and Bosellia mimetica feed suctorially on the algae Acetabularia acetabulum, Udotea petiolata, Cladophora vagabunda and Halimeda tuna, respectively.
  • Finally, the spinner head 25 is lowered, and, while it is suctorially stuck to the sheet object 10 and performing a predetermined rotary movement, the sheet object 10 is fed with a chemical within the inner space of the spinner cut 28, so that the surface of the sheet object 10 is treated.

Origin

mid 19th century: from modern Latin suctorius (from Latin sugere 'suck') + -al.

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