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Webster 1913 Edition

Opus

‖

O′pus

,

Noun.

;

pl.

Opera

(#)

.

[L. See

.]

A work;

specif.

(Mus.)

,

a musical composition.

☞ Each composition, or set of pieces, as the composer may choose, is called an opus, and they are numbered in the order of their issue. (Often abbrev. to

op.

)

Opus incertum

.

[L.]

(Arch.)

See under

.