| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| atmo | noun | The standard atmospheric pressure used in certain physical measurements calculations; conventionally, that pressure under which the barometer stands at 760 millimeters, at a temperature of 0ยก Centigrade, at the level of the sea, and in the latitude of Paris. |
| atom | noun | An ultimate indivisible particle of matter., An ultimate particle of matter not necessarily indivisible; a molecule., A constituent particle of matter, or a molecule supposed to be made up of subordinate particles., The smallest particle of matter that can enter into combination; one of the elementary constituents of a molecule., Anything extremely small; a particle; a whit., To reduce to atoms. |
| atop | adverb | On or at the top. |
| atte | At the. | |
| atwo | adverb | In two; in twain; asunder. |