high-grade

Adjective

high-grade (comparative higher-grade, superlative highest-grade)

1. Of high quality, particularly good.
   • The high-grade ore was much more profitable than lower-grade ore.
   • Were the possibilities of improving the efficiency of British Railways' steam locomotives by making the best use of the reasonably satisfactory low-grade lump coal available today, and thereby saving more high-grade locomotive coal, borne in mind when it was decided to go ahead rapidly with...1961 September, “Talking of Trains: Greater scope for steam”, in Modern Railways, page 517

   Antonyms:

   low-grade

2. Severe.
   • This chapter on high-grade pelvic prolapse by Phillip Toozs Hobson and Amallia Brair concisely reviews prevalence, risk factors, conservative and surgical management options, surgical complications and prevention. High-grade prolapse is a particularly challenging clinical scenario because it...2021 April 14, Una Lee, “High-Grade Prolapse”, in Female Pelvic Medicine. Challenging Cases with Expert Commentary, →DOI, →ISBN, pages 209–215
   • Surgical treatment of patients affected by high-grade high-dysplastic spondylolisthesis still represents a challenge for spine surgeons.2022 October 1, C. Faldini, F. Barile, M. Ialuna, M. Manzetti, G. Viroli, F. Vita, M. Traversari, A. Rinaldi, T. Cerasoli, A. Paolucci, G. D’Antonio, A. Ruffilli, “High-grade dysplastic...

   Antonyms:

   low-grade