Liquefying in the air; capable of becoming liquid by attracting moisture from the atmosphere: as, deliquescent salts.Hence Apt to dissolve or melt away; wasting away by or as if by melting.In vegetable histology, liquefying or melting away gradually, as part of the normal process of growth.In botany, branching in such a way that the stem is lost in the branches.n. A substance which becomes liquid by attracting moisture from the air.n. In botany, becoming liquid at maturity, as certain agarics.