(pharmacology) A herbal preparation made from one plant, as opposed to something made from more than one plant.
(logic) A simple or atomic proposition.
(weaving) A drawloom.
(weaving) Part of the apparatus for raising the heddles of a drawloom.
(Roman Catholicism) A feast which is not a double or a semidouble.
Uncomplicated; lacking complexity; taken by itself, with nothing added.
Easy; not difficult.
Without ornamentation; plain.
Free from duplicity; guileless, innocent, straightforward.
Undistinguished in social condition; of no special rank.
(now colloquial, euphemistic) Feeble-minded; foolish.
(heading, technical) Structurally uncomplicated, consisting of one single substance, having no normal subgroup, not compound but possibly lobed, using steam only once in its cylinders, consisting of a single individual or zooid, and homogenous in mineralogy.