Excrescence (noun)

1. A growth or protrusion on a living organism or structure that is abnormal or unnecessary.
2. A structural or functional part that is extraneous or surplus to requirements.
3. An addition or feature that is considered unattractive or aesthetically displeasing.

Origin:

Derived from the latin word 'excrescentia' meaning an abnormal growth or protrusion.

Examples:

1. The excrescence on the tree trunk was found to be a type of fungus.
2. The excrescence on the building's facade was deemed a safety hazard and removed.
3. The excrescence on the sculpture was considered by some to detract from its beauty.
4. The excrescence of the latest smartphone model was criticized as unnecessary and distracting.
5. The excrescence of the new feature in the software was seen by some users as intrusive and disruptive.