One of the mysteries of the English language finally explained.
1Adapted for sucking (descriptive, for example, of the mouthparts of some insects).
- ‘This fused fin is also called a suctorial disc and is used to help attach to a surface in flowing water.’
- ‘Dropping into one of the deeper pools under a ledge, I found a loricariid catfish, with its suctorial mouth, under a dead log - a favourite hang-out.’
- ‘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.
- ‘Extremes in this case are represented by suctorial species, Poyntonia paludicola, and various semiterrestrial forms (e.g., Arthroleptides, Cycloramphus, Nannophrys, and Thoropa).’
- ‘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.’
- ‘One explanation is that suctorial insect growth was limited by the phenology of the host plant and not just by climate.’
Mid 19th century: from modern Latin suctorius (from Latin sugere ‘suck’) + -al.
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