#1 smear n. [vilification, malignment] slanderous defamation. wn
#2 smear v. stain by smearing or daubing with a dirty substance. wn
#3 smear n. [cytologic smear, cytosmear] a thin tissue or blood sample spread on a glass slide and stained for cytologic examination and diagnosis under a microscope. wn
#4 smear v. [blur, smudge, smutch] make a smudge on; soil by smudging. wn
#5 smear n. [smudge, spot, blot, daub, smirch, slur] a blemish made by dirt; "he had a smudge on his cheek". wn
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