(mathematics) A certain arithmetic function that is neither multiplicative nor additive. It is denoted by Λ(n) and defined as :𝛬(n)= log p mbox ifn=pᵏ mbox forsomeprimep mbox andintegerk>1,\0 mbox ...

(now historical) A fivepenny; a fivepenny bit. / (slang) A flick-knife.

plural of street-lamp

present participle of misform