English edit

Etymology edit

From tank +‎ side.

Noun edit

tankside (plural tanksides)

  1. The side of a tank (for water etc.)
    • 1964 July, “Newsreel”, in Modern Railways, page 67, photo caption:
      An ex-LMS Class 3F 0-6-0T, No. 47482, emerges from Darlington works after overhaul with its number painted on the tankside in NER style.