Astern, a-stėrn′, adv. in the stern: towards the hinder part of a ship: behind. [Prep. a, and Stern.]
Asteroid, as′tėr-oid, n. one of the minor planetary bodies revolving between the orbits of Mars and Jupiter.—adj. Asteroid′al. [Gr. astēr, a star, eidos, form.]
Astert, a-stėrt′. Same as Astart.
Asthenia, as-thē-nī′a, n. debility, lack of strength.—adj. Asthen′ic [Gr. a, priv., and sthenos, strength.]
Asthma, ast′ma, n. a chronic disorder of the organs of respiration, characterised by the occurrence of paroxysms in which the breathing becomes difficult, and accompanied by wheezing and a distressing feeling of tightness in the chest.—adjs. Asthmat′ic, -al, pertaining to or affected by asthma.—adv. Asthmat′ically. [Gr. asthma, asthmat-os—az-ein, to breathe hard, a-ein, to blow.]
Astigmatism, a-stig′ma-tizm, n. a defective condition of the eye, in which rays proceeding to the eye from one point are not correctly brought to a focus at one point.—adj. Astigmat′ic. [Gr. a, neg., and stigma, stigmat-os, a point.]
Astir, a-stir′, prep. phr. or adv. on the move, out of bed, in motion or excitement. [Prep. a, and Stir.]
Astomatous, as-tom′a-tus, adj. having no mouth, used of a division of the protozoa.
Astonish, as-ton′ish, v.t. to impress with sudden surprise or wonder: to amaze: (Shak.) to stun—older form Aston′y, whence the p.adj. Aston′ied, dazed, bewildered, greatly astonished.—Aston′, Astun′, Astoned′, Astunned′, are obsolete.—p.adj. Aston′ished, amazed: (obs.) stunned.—adj. Aston′ishing, very wonderful, amazing.—adv. Aston′ishingly.—n. Aston′ishment, amazement: wonder: a cause for astonishment. [From the earlier form, Astone; O. Fr. estoner; L. attonāre, to strike with a thunderbolt.]
Astound, as-townd′, v.t. to amaze, to strike dumb with astonishment:—pa.p. astound′ed; pr.p. astound′ing.—pa.p. Astound′ (arch.).—p.adj. Astound′ing. [Astound (adj.) is developed from Astoned, hence the verb is a doublet of Astonish.]