n. the chemical symbol for einsteinium, a transuranic element with atomic number 99. The atomic weight of the longest-lived isotope, with a half-life of 276 days, is 254. The first isotope discovered, having atomic weight 253 and a half-life of 20 days, was recognized in 1952 in the debris from a hydrogen bomb test. As much as 3 micrograms of einsteinium were produced by a complex process involving long irradiation of plutonium isotopes in nuclear reactors. Its chemical properties are those of a trivalent actinide element. HCP61
Syn. -- einsteinium, atomic number 99. [ WordNet 1.5 +PJC ]

n. [ F., Sp. escalada (cf. It. scalata), fr. Sp. escalar to scale, LL. scalare, fr. L. scala ladder. See Scale, v. t. ] (Mil.) A furious attack made by troops on a fortified place, in which ladders are used to pass a ditch or mount a rampart. [ 1913 Webster ]

Sin enters, not by escalade, but by cunning or treachery. Buckminster. [ 1913 Webster ]

v. t. [ imp. & p. p. Escaladed; p. pr. & vb. n. Escalading. ] (Mil.) To mount and pass or enter by means of ladders; to scale; as, to escalate a wall. [ 1913 Webster ]

n. [ NL. Cf. Escalade. ] A stairway or incline arranged like an endless belt so that the steps or treads ascend or descend continuously, and one stepping upon it is carried up or down; -- originally a trade term, which has become the generic name for such devices. Such devices are in common use in large retail establishments such as department stores, and in public buildings having a heavy traffic of persons between adjacent floors. [ Webster 1913 Suppl. +PJC ]

n. See Escalop. [ 1913 Webster ]

a. See Escaloped. [ 1913 Webster ]

n. [ OF. escalope shell, F. escalope a sort of cut of meat. See Scallop. ] 1. (Zoöl.) A bivalve shell of the genus Pecten. See Scallop. [ 1913 Webster ]

2. A regular, curving indenture in the margin of anything. See Scallop. “So many jags or escalops.” Ray. [ 1913 Webster ]

3. (a) The figure or shell of an escalop, considered as a sign that the bearer had been on a pilgrimage to the Holy Land. Hence: (b) (Her.) A bearing or a charge consisting of an escalop shell. [ 1913 Webster ]

a. 1. Cut or marked in the form of an escalop; scalloped. [ 1913 Webster ]

2. (Her.) Covered with a pattern resembling a series of escalop shells, each of which issues from between two others. Its appearance is that of a surface covered with scales. [ 1913 Webster ]

Escaloped oysters (Cookery). See under Scalloped. [ 1913 Webster ]

n. [ LL. escambium, excambium. See Excamb. ] (Eng. Law) A license formerly required for the making over a bill of exchange to another over sea. Cowell. [ 1913 Webster ]

a. Avoidable. [ 1913 Webster ]