ad·den·dum /əˈdɛndəm/
附錄,附加物
Ad·den·dum n.; pl. Addenda A thing to be added; an appendix or addition.
Addendum circle Mech., the circle which may be described around a circular spur wheel or gear wheel, touching the crests or tips of the teeth.
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addendum
n : textual matter that is added onto a publication; usually at
the end [syn: supplement, postscript]
[also: addenda (pl)]