Slur

verb (used with object), slurred, slurring.
1.
to pass over lightly or without due mention or consideration (often followed by over):
The report slurred over her contribution to the enterprise.
2.
to pronounce (a syllable, word, etc.) indistinctly by combining, reducing, or omitting sounds, as in hurried or careless utterance.
3.
to cast aspersions on; calumniate; disparage; depreciate:
The candidate was viciously slurred by his opponent.
4.
Music.

to sing to a single syllable or play without a break (two or more tones of different pitch).
to mark with a slur.

5.
Chiefly British Dialect. to smirch, sully, or stain.
verb (used without object), slurred, slurring.
6.
to read, speak, or sing hurriedly and carelessly.
noun
7.
a slurred utterance or sound.
8.
a disparaging remark or a slight: quick to take offense at a slur;
an ethnic slur against people of Irish descent.
9.
a blot or stain, as upon reputation:
a slur on his good name.
10.
Music.

the combination of two or more tones of different pitch, sung to a single syllable or played without a break.
a curved mark indicating this.

11.
Printing. a spot that is blurred or unclear as a result of paper, plate, or blanket slippage.
verb (mainly transitive) slurs, slurring, slurred
1.
(often foll by over) to treat superficially, hastily, or without due deliberation; gloss
2.
(also intransitive) to pronounce or utter (words, etc) indistinctly
3.
to speak disparagingly of or cast aspersions on
4.
(music) to execute (a melodic interval of two or more notes) smoothly, as in legato performance
5.
(also intransitive) to blur or smear
6.
(archaic) to stain or smear; sully
noun
7.
an indistinct sound or utterance
8.
a slighting remark; aspersion
9.
a stain or disgrace, as upon one’s reputation; stigma
10.
(music)

a performance or execution of a melodic interval of two or more notes in a part
the curved line (⌢ or ⌣) indicating this

11.
a blur or smear