| allyl alcohol | |
| —n | |
| a colourless pungent poisonous liquid used in the manufacture of resins, plasticizers, and other organic chemicals. Formula: CH2:CHCH2OH; relative density: 0.85; melting pt: --129°C; boiling pt: 96.9°C | |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |