Definition of plication in US English:



  • 1A fold or corrugation.

    • ‘The shell possesses a sulcus on the ventral valve and a corresponding fold on the dorsal valve and several weak plications on flanks.’
    • ‘Strong radiating ribs are common in this group, and there are generally very strong plications or accordion like folds on the sulcus (the long middle section) of the shell.’
    • ‘Many of these forms had high cardinal areas and coarse plications, although others were much more like conventional spiriferids.’
    • ‘The ability to perform this procedure without thoracotomy minimized his hospital stay and recovery time while not compromising the integrity of the plication.’
    • ‘Cyrtospirifer ‘sinensis’ differs from C. placitus by its flat ventral interarea and smaller number of sinal plications.’
    • ‘Some species of Tongzithyris have one to two pairs of plications.’
    • ‘Micro-pustules, both in grooves and on plications, are the most common type of micro-ornament.’
    • ‘Some shells develop up to two lateral sinal plications, but in most lateral sinal plications are lacking.’
    • ‘In some specimens of this species the shell plications may be grooved (divided by two grooves) due to abrasion of the shell, as first noted by Fenton and Fenton.’
    • ‘A small minority of the Atrypacea have smooth shells, others being rather finely costate or having medium to coarse plications.’
    fold, tuck, crease, gather, pucker, crimp
    View synonyms
    1. 1.1 The manner of folding or condition of being folded.
      • ‘A technique has been described for arthroscopic plication of the rotator interval, but this was not used in our series of patients.’
      • ‘Recently, we have begun to perform arthroscopic capsular plication in patients with significant capsule redundancy and laxity.’
      • ‘Our patients who did not undergo bilateral plication showed a similar pattern.’
      • ‘They are especially characteristic of many temperate trees where plication occurs between secondary veins before formation of tertiary veins in the bud.’
      • ‘With bilateral paralysis, bilateral plication improves the efficiency of the rib cage muscles in generating tidal volume.’
      • ‘Surgical therapy in the form of diaphragmatic plication is often reluctantly considered because of the potential morbidity and disability associated with thoracotomy.’


Late Middle English: via Old French from medieval Latin plicatio(n-), from Latin plicare ‘to fold’.