1. (Myth.)

Defn: One of the Pleiades; — called also Sterope.

2. (Astron.) A double star in the Pleiades (21 k and 22 l Pleiadum, of the 5.8 and 6.4 magnitude respectively), appearing as a single star of the 5.3 magnitude to the naked eye.

ASTEROPHYLLITE
As`ter*oph"yl*lite, n. Etym: [Gr. (Paleon.)

Defn: A fossil plant from the coal formations of Europe and America, now regarded as the branchlets and foliage of calamites.

ASTERT
A*stert, v. t. Etym: [Pref. a- + start; OE. asterten, asturten.]

Defn: To start up; to befall; to escape; to shun. [Obs.] Spenser.

ASTERT
A*stert", v. i.

Defn: To escape. [Obs.] Chaucer.

ASTHENIA; ASTHENY
As`the*ni"a, As"the*ny, n. Etym: [NL. asthenia, Gr. (Med.)