| Definition/Meaning | Word/Phrase |
| obstruction of the circulatory system caused by an air bubble as, e.g., accidentally during surgery or hypodermic injection or as a complication from scuba diving |
aeroembolism
,
air embolism
,
gas embolism
|
| annual weed with finely divided foliage and spikes of green flowers; common in North America; introduced elsewhere accidentally |
Ambrosia artemisiifolia
,
common ragweed
|
| strain accidentally imported into Florida from the Middle East then spread to California where it is a very serious pest feeding on almost all vegetable crops and poinsettias |
Bemisia tabaci
,
poinsettia strain
,
superbug
|
| (nautical) the event of a boat accidentally turning over in the water |
capsizing
|
| Asiatic insect introduced accidentally into United States; pest on citrus and apple trees |
Comstock's mealybug
,
Comstock mealybug
,
Pseudococcus comstocki
|
| act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors |
contamination
,
pollution
|
| feeling of distress and disbelief that you have when something bad happens accidentally |
daze
,
shock
,
stupor
|
| inch long mollusk imported accidentally from Europe; clogs utility inlet pipes and feeds on edible freshwater mussels |
Dreissena polymorpha
,
zebra mussel
|
| quality of happening accidentally and by lucky chance |
fortuitousness
|
| serious (sometimes fatal) infection of rodents caused by Yersinia pestis and accidentally transmitted to humans by the bite of a flea that has bitten an infected animal |
pest
,
pestilence
,
pestis
,
plague
|
| slide accidentally |
slip
|
| accidentally pour |
spill
|
| plant growing from self-sown or accidentally dropped seed |
volunteer
|