English noun: atom |
1. | atom (substance) (physics and chemistry) the smallest component of an element having the chemical properties of the element |
|
| Broader (hypernym) | substance |
|
| Narrower (hyponym) | carbon atom, free radical, hydrogen atom, isotope, monad, radical |
|
| Part holonym | elementary particle, fundamental particle, nucleus |
|
| Part meronym | chemical element, element, molecule |
|
| Domain category | chemical science, chemistry, natural philosophy, physics |
|
2. | atom (substance) (nontechnical usage) a tiny piece of anything |
|
| Synonyms | corpuscle, molecule, mote, particle, speck |
|
| Broader (hypernym) | material, stuff |
|
| Narrower (hyponym) | chylomicron, flyspeck, grain, grinding, identification particle |
|