n. 意外事件, 机遇, 事故, 次要方面

[化] 意外事故; 事故

[医] 事故, 意外伤害

[经] 事故, 意外, 偶发事故

Accident \Ac"ci*dent\, n. [F. accident, fr. L. accidens,
-dentis, p. pr. of accidere to happen; ad + cadere to fall.
See {Cadence}, {Case}.]
1. Literally, a befalling; an event that takes place without
one's foresight or expectation; an undesigned, sudden, and
unexpected event; chance; contingency; often, an
undesigned and unforeseen occurrence of an afflictive or
unfortunate character; a casualty; a mishap; as, to die by
an accident.

Of moving accidents by flood and field. --Shak.

Thou cam'st not to thy place by accident:
It is the very place God meant for thee. --Trench.

2. (Gram.) A property attached to a word, but not essential
to it, as gender, number, case.

3. (Her.) A point or mark which may be retained or omitted in
a coat of arms.

4. (Log.)
(a) A property or quality of a thing which is not
essential to it, as whiteness in paper; an attribute.
(b) A quality or attribute in distinction from the
substance, as sweetness, softness.

5. Any accidental property, fact, or relation; an accidental
or nonessential; as, beauty is an accident.

This accident, as I call it, of Athens being
situated some miles from the sea. --J. P.
Mahaffy.

6. Unusual appearance or effect. [Obs.] --Chaucer.

Note: Accident, in Law, is equivalent to casus, or such
unforeseen, extraordinary, extraneous interference as
is out of the range of ordinary calculation.