back wall

Etymology

Because it is a wall and is located at the back of the court.

Noun

back wall (plural back walls)

1. (squash, racquetball) The wall at the back of a racquetball or squash court, directly opposite the front wall.
2. (anatomy) The back of the thorax's wall
   • 2016 June 16, Carol J. Buck, 2012 ICD-10-CM Draft Standard Edition -- E-Book, Elsevier Health Sciences, →ISBN, page 1419:

     ... back wall of thorax S20.40 Unspecified superficial injuries of back wall of thorax S20.401 Unspecified superficial injuries of right back wall of thorax D , S S20.402 Unspecified superficial injuries of left back wall of thorax D , S […]

   • 2015 January 1, Carol J. Buck, 2015 ICD-10-CM Draft Edition - E-Book, Elsevier Health Sciences, →ISBN, page 1319:

     ... back wall of thorax with penetration into thoracic cavity S21.431 Puncture wound without foreign body of right back wall of thorax with penetration into thoracic cavity A , D , S S21.432 Puncture wound without foreign body of left […]

   • 2023 September 8, Elsevier, Buck's 2024 ICD-10-CM for Hospitals - E-Book, Elsevier Health Sciences, →ISBN, page 1297:

     ... back wall of thorax S20.401 Unspecified superficial injuries of right back wall of thorax S20.402 Unspecified superficial injuries of left back wall of thorax S20.409 Unspecified superficial injuries of unspecified back wall of […]

   • 2021 October 9, Elsevier, Buck's 2022 ICD-10-CM for Physicians - E-Book: Buck's 2022 ICD-10-CM for Physicians - E-Book, Elsevier Health Sciences, →ISBN, page 1244:

     ... back wall of thorax S20.221 Contusion of right back wall of thorax S20.222 Contusion of left back wall of thorax S20.223 Contusion of bilateral back wall of thorax S20.224 Contusion of middle back wall of thorax S20.229 Contusion of […]

   • 2020 September 25, Elsevier, Buck's 2021 ICD-10-CM for Physicians - E-Book: Buck's 2021 ICD-10-CM for Physicians - E-Book, Elsevier Health Sciences, →ISBN, page 1247:

     ... back wall of thorax S20.40 Unspecified superficial injuries of back wall of thorax S20.401 Unspecified superficial injuries of right back wall of thorax S20.31 Abrasion of front wall of thorax S20.311 Abrasion of right front wall of […]

   • 2015 November 12, Carol J. Buck, 2016 ICD-10-CM Hospital Professional Edition - E-Book, Elsevier Health Sciences, →ISBN, page 1318:

     ... back wall of thorax with penetration into thoracic cavity A , D , S S21.409 Unspecified open wound of unspecified back wall of thorax with penetration into thoracic cavity A , D , S S21.41 Laceration without foreign body of back wall of […]

3. Used other than figuratively or idiomatically: see back,‎ wall.

Anagrams

• Black Law