| Answer | Crossword Clue |
|---|---|
| ENGRAM | Hypothetical memory unit |
| mnemon | a hypothetical unit of memory |
| mnemons | MNEMON, a hypothetical unit of memory |
| engram | a hypothetical physical trace of memory in the brain. |
| engrammic | related to an engram, a hypothetical change in neural tissue due to memory |
| engrams | a hypothetical change in neural tissue postulated in order to account for persistence of memory |
