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| alpha particle |
a positively charged particle given off as radiation from some fission or decay processes, consisting of two protons and two neutrons. |
| antisepsis |
the killing of microorganisms that cause disease or decay. |
| antiseptic |
a substance or drug that kills germs that cause disease or decay. |
| asepsis |
the condition of being free of microorganisms that cause disease or decay. [1/2 definitions] |
| aseptic |
free of bacteria or germs that cause disease or decay. [1/3 definitions] |
| bacteria |
microscopic organisms that often play a role in the decay of living things, the process of fermentation, and sometimes in causing disease. Bacteria are each made up of only one cell, but different kinds of bacteria can take different shapes. These organisms live in all parts of the earth including oceans, deserts, glaciers, hot springs, and in the bodies of most living things. While some kinds of bacteria are dangerous, most kinds are useful because they help in the digestion of food, in the making of soil, in the creation of medicines, and in many other natural processes. |
| beta particle |
a high-speed positron or electron ejected from a nucleus in radioactive decay or fission. |
| calcium fluoride |
a white powder used in cements and other industrial products and as a tooth decay preventive. |
| canker |
any cause of corruption or decay. [1/7 definitions] |
| caries |
bone or tooth decay. |
| conservator |
one who guards or preserves from harm or decay; custodian. [1/2 definitions] |
| corruption |
physical decay or decomposition. [1/5 definitions] |
| crumble |
to fall into small bits; decay. [1/2 definitions] |
| decadence |
the act, process, or condition of decline into an inferior state; deterioration; decay. [1/3 definitions] |
| decompose |
to decay. |
| degeneration |
the process of decline or decay. [2/4 definitions] |
| dilapidated |
fallen into ruin or decay. |
| disintegrate |
to decay or be transformed, as an atomic nucleus bombarded by high-energy particles. [1/3 definitions] |
| dry rot |
a fungus decay of seasoned timber that causes it to become brittle and crumble into a dry powder, or the fungus causing this decay. [2/3 definitions] |
| dust |
the ultimate state of matter or of human beings that results from decay. [1/11 definitions] |
| ebb |
to weaken or become less; decay. [1/3 definitions] |
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