SG Heritage Dictionary

Sessile [Adjective] Webster's Dictionary 1828

In botany , sitting on the stem. A sessile leaf issues directly from the stem or branch, without petiole or footstalk. A sessile flower has no peduncle. Sessile pappus or down has no stipe, but is placed immediately on the seed.

Sessile [Adjective] Webster's Dictionary 1913

1. Attached without any sensible projecting support.

2. Resting directly upon the main stem or branch, without a petiole or footstalk; as, a sessile leaf or blossom.

3. Permanently attached; -- said of the gonophores of certain hydroids which never became detached.

Sessile-eyed [Adjective] Webster's Dictionary 1913

Having eyes which are not elevated on a stalk; -- opposed to stalk-eyed.