HELIXOMETER


Meaning of HELIXOMETER in English

ˌ ̷ ̷ ̷ ̷ˈsäməd.ə(r) noun

Etymology: helix + -o- + -meter

: a tubular instrument in which an electric light and a prism and lens system enable visual examination of a small-arms bore (as in criminal investigation)

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.