形容詞 isotonic:

1. (used of solutions) having the same or equal osmotic pressure
   同義詞：isosmotic
2. relating to or characterized by the equal intervals of a musical scale
3. of or involving muscular contraction in which tension is constant while length changes
4. of two or more muscles; having equal tension

i.so.ton.ic

adj.（形容詞）
Of equal tension.
等壓的
Isosmotic.
等滲壓的
Having the same concentration of solutes as the blood:
與血液濃度相等的：具有與血液相同濃度溶質(zhì)的：
例句：
an isotonic saline solution.
與血液濃度相同的鹽溶液

Physiology Of or involving muscular contraction in which the muscle remains under relatively constant tension while its length changes.
【生理學(xué)】 等張的：涉及肌肉長(zhǎng)度在相對(duì)穩(wěn)定的張力下發(fā)生變化的肌肉收縮的

來源：
iso-
iso-
Greek tonos [tension] * see tone
希臘語 tonos [張力；緊張] *參見 tone
-ic
-ic

【引伸】
i.soton.ically
adv.（副詞）
i.sotonic.ity