Low-priced stock that sells at less than $1.00 per share. Often highly-speculative and volatile, such as start-up mining companies. While, in general, penny stock are considered high-risk securities, some penny stock mature into less-speculative investments. All penny stock are traded over-the-counter.
In its natural form, cork is also a very good fire retardant, although cork dust is actually extremely flammable (because here the cell structure has been broken down). Impermeable: Cork has a magic chemical in its cell membrane that makes it completely impermeable to liquids and gases.
flamÂ·maÂ·ble. adj. Easily ignited and capable of burning rapidly. [From Latin. , to set fire to, from. , flame; see bhel-in Indo-European roots .]. flamâ²maÂ·bilâ²iÂ·ty n. flamâ²maÂ·ble n. Usage Note: Inflammable means combustible, and has the same meaning as the word flammable.