Where does “isotonic” come from?
Isotonic derives from English tonic, from Ancient Greek τόνος meaning tension or strain, ultimately from Proto-Indo-European ten- meaning to stretch.
isotonic (English): having the same osmotic pressure; Having the same...
Definitions
- having the same osmotic pressure; Having the same...
Ancestry of “isotonic”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | tonic | Pertaining to tension, especially of muscles;... |
| 2 | English | tone | A specific pitch; An interval of a major second;... |
| 3 | Middle English | tone | the one |
| 4 | Latin | tonus | The stretching or straining of a rope; A strain;... |
| 5 | Ancient Greek | τόνος | rope, cord; chord; tone, note |
| 6 | Proto-Hellenic | tónos | rope, cord; tension |
| 7 | Proto-Indo-European | tónos | something stretched; chord, fiber, string |
| 8 | Proto-Indo-European | ten- | to stretch, to extend |