smirch /smɜː(ɹ)t͡ʃ/noun 3verb 2forms 3 noun3 •A chirp of radiation power from an astronomical body that has a smeared appearance on its plot in the time-frequency plane (usually associated with massive bodies orbiting supermassive black holes)The strain h(t) produced by a smirch in LISA is given by h(t) = −-A(t)cos[(t) + φ(t)] — 2003 •(no longer used) Dirt, or a stain.Too often, in the years between 800 and 1050, the everyday sun declined through the smirch of flame and smoke of a monastery or town robbed and burnt. — 1998 •(figurative, no longer used) A stain on somebody's reputation.there were some business transactions which savored of dangerous speculation, if not dishonesty; and around it all lay the smirch of the Freedmen's Bank. — 2008 verb2 •(no longer used) To dirty; to make dirty.CELIA. I'll put myself in poor and mean attire, / And with a kind of umber smirch my face; / The like do you; so shall we pass along, / And never stir assailants. — 1598 •(figurative, no longer used) To harm the reputation of; to smear or slander. formssmirched · smirching · smirches
