What is relaxed; open or readily opened. [R.] "The bowels must be kept soluble." Dunglison. Soluble glass. (Chem.) See under Glass called?

soluble — Relaxed; open or readily opened. [R.] "The bowels must be kept soluble." Dunglison. Soluble glass. (Chem.) See under Glass. (Webster's 1913.)

Sources