| Definition/Meaning | Word/Phrase |
| drug (or other chemical agent) that causes abortion |
aborticide
,
abortifacient
,
abortion-inducing drug
|
| chemical agent used to kill mites |
acaracide
,
acaricide
|
| (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected |
accelerator
,
catalyst
|
| (mineral extraction) a surface-active chemical used in flotation process to increase the attraction to a specific mineral |
activating agent
|
| stimulation of activity in an organism or chemical |
activation
|
| part of an enzyme or antibody where the chemical reaction occurs |
active site
|
| chemical agent capable of activity |
active
,
active agent
|
| (chemistry) the capacity of a substance to take part in a chemical reaction |
activity
|
| chemical reaction in which one molecule is added to another |
addition reaction
|
| acute lung injury characterized by coughing and rales; inflammation of the lungs which become stiff and fibrous and cannot exchange oxygen; occurs among persons exposed to irritants such as corrosive chemical vapors or ammonia or chlorine etc. |
adult respiratory distress syndrome
,
ARDS
,
wet lung
,
white lung
|
| Islamic terrorist cell that originated in Jordan but operates in Germany; goal is to attack Europe and Russia with chemical weapons |
al-Tawhid
,
Al Tawhid
,
Divine Unity
|
| chemical sprayed on fruit trees to regulate their growth so the entire crop can be harvested at one time |
Alar
,
daminozide
|
| gold, medieval chemical philosophy that metals could be turned into |
alchemy
|
| chemical group -OH |
alcohol group
,
alcohol radical
|
| any of a class of highly reactive chemical compounds; used in making resins and dyes and organic acids |
aldehyde
|
| chemical group -CHO |
aldehyde group
,
aldehyde radical
|
| (chemistry) variability in chemical composition without variation in crystalline form |
allomerism
|
| any of several different crystalline forms of the same chemical compound |
allomorph
|
| colorless, odorless chemical |
alum
|
| any nuclear or chemical or biological material that can be used as a weapon of mass destruction |
ammunition
|