S-IRON
Meaning of S-IRON in English
ˈ ̷ ̷ˌ ̷ ̷( ̷ ̷) noun
Usage: capitalized S
: an S-shaped iron driven into and across the end of a railroad tie to prevent splitting
Webster's New International English Dictionary.
Новый международный словарь английского языка Webster.
2012