Definitions of smear

1. To overspread with anything oily or sticky; daub; to soil in any way.

2. To overspread with anything sticky or oily, as grease: to daub.

3. To daub.

4. To bedaub with a sticky substance.

5. cover ( a surface) by smearing ( a substance) over it; " smear the wall with paint"; " daub the ceiling with plaster"

6. stain by smearing or daubing with a dirty substance

7. To overspread with anything viscous or oily; to besmear; to daub; to soil; to contaminate.

8. To overspread with greasy, fatty, or adhesive matter; to daub; to soil.

9. an act that brings discredit to the person who does it; " he made a huge blot on his copybook"

10. a blemish made by dirt; " he had a smudge on his cheek"

11. a thin tissue or blood sample spread on a glass slide and stained for cytologic examination and diagnosis under a microscope

12. To overspread with anything unctuous, viscous, or adhesive; to daub; as, to smear anything with oil.

13. To soil in any way; to contaminate; to pollute; to stain morally; as, to be smeared with infamy.

14. A fat, oily substance; oinment.

15. Hence, a spot made by, or as by, an unctuous or adhesive substance; a blot or blotch; a daub; a stain.

16. A blot or stain.

17. A soiled spot made by some gummy substance.

18. A stain.