from
The Collaborative International Dictionary of English v.0.48
Autumnal \Au*tum"nal\, a. [L. auctumnalis, autumnalis: cf. F.
automnal.]
1. Of, belonging to, or peculiar to, autumn; as, an autumnal
tint; produced or gathered in autumn; as, autumnal fruits;
flowering in autumn; as, an autumnal plant.
[1913 Webster]
Thick as autumnal leaves that strow the brooks
In Vallombrosa. --Milton.
[1913 Webster]
2. Past the middle of life; in the third stage.
[1913 Webster]
An autumnal matron. --Hawthorne.
[1913 Webster]
{Autumnal equinox}, the time when the sun crosses the
equator, as it proceeds southward, or when it passes the
autumnal point.
{Autumnal point}, the point of the equator intersected by the
ecliptic, as the sun proceeds southward; the first point
of Libra.
{Autumnal signs}, the signs Libra, Scorpio, and Sagittarius,
through which the sun passes between the autumnal equinox
and winter solstice.
[1913 Webster]