sematrope
Appearance
English
[edit]Etymology
[edit]Noun
[edit]sematrope (plural sematropes)
- (dated) An instrument for signalling by reflecting the rays of the sun in different directions.
Related terms
[edit]References
[edit]- Edward H[enry] Knight (1877) “Sematrope”, in Knight’s American Mechanical Dictionary. […], volumes III (REA–ZYM), New York, N.Y.: Hurd and Houghton […], →OCLC.
- “sematrope”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.