smear

1 of 2

noun

ˈsmir 

1

a

: a viscous or sticky substance

b

: a spot made by or as if by an unctuous or adhesive substance

2

: material smeared on a surface (as of a microscopic slide)

also : a preparation made by smearing material on a surface

a vaginal smear

3

: a usually unsubstantiated charge or accusation against a person or organization

—often used attributively

a smear campaign

a smear job

smear

2 of 2

verb

smeared; smearing; smears

transitive verb

1

a

: to overspread with something unctuous, viscous, or adhesive : daub

smeared the paper with glue

b

: to spread over a surface

2

a

: to stain, smudge, or dirty by or as if by smearing

b

: sully, besmirch

specifically : to vilify especially by secretly and maliciously spreading grave charges and imputations

3

: to obliterate, obscure, blur, blend, wipe out, or defeat by or as if by smearing

smearer noun

Synonyms

Verb

• paint
• coat
• daub
• stain
• anoint
• plaster
• besmear

Examples of smear in a Sentence

Noun

The blood smear revealed malaria.

Verb

The children smeared the window with fingerprints.

She smeared jam on her toast.

Butter was smeared all over the counter.

Her mascara smeared when she cried.

Recent Examples on the Web

Noun

The nonprofit health care organization now provides birth control, pap smears and other routine reproductive health care services at its clinics in Texas. —Bayliss Wagner, Austin American Statesman, 2 July 2025

If a pap smear is normal, your health care provider may advise you to wait three years until your next one. —Greta Cross, USA Today, 10 May 2025

Verb

The assertion by certain anonymous users online is a typically out-of-context and absurd effort to create fake news for clicks and to smear. —Chloe Mayer, MSNBC Newsweek, 23 June 2025

In extreme cases, some parents will threaten to smear the therapist's name, leave bad reviews, complain to the licensing board, or even threaten the therapist’s physical safety. —Sherri Gordon, Parents, 23 June 2025

Word History

Etymology

Noun

Middle English smere, from Old English smeoru; akin to Old High German smero grease and probably to Old Irish smiur marrow

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1a

Verb

before the 12th century, in the meaning defined at sense 1a

Phrases Containing smear

• cervical smear
• Papanicolaou smear
• Pap smear
• smear test

Rhymes for smear

• beer
• bier
• cheer
• clear
• dear
• deer
• drear
• ear
• fear
• fier
• gear
• hear

Kids Definition

smear

1 of 2 noun

ˈsmi(ə)r 

1

: a spot made by or as if by an oily or sticky substance : smudge

2

: material smeared on a surface

especially : material prepared for microscopic examination by smearing on a slide compare pap smear

3

: a usually unproven charge or accusation

smear

2 of 2 verb

1

a

: to spread with something oily or sticky

b

: to spread over a surface

2

a

: to stain, smudge, or dirty by or as if by smearing

b

: to harm the reputation of

3

: to blot out or blur by or as if by smearing

smearer noun

Medical Definition

smear

1 of 2 noun

ˈsmi(ə)r 

: material spread on a surface (as of a microscopic slide)

also : a preparation made by spreading material on a surface see pap smear, vaginal smear

smear

2 of 2 transitive verb

: to prepare as a smear for microscopic examination : make a smear of