MONANDRY
Mo*nan"dry, n. Etym: [See Monandria.]
Defn: The possession by a woman of only one husband at the same time; — contrasted with polyandry.
MONANTHOUS
Mo*nan"thous, a. Etym: [Mon- + Gr. (Bot.)
Defn: Having but one flower; one-flowered. Gray.
MONARCH
Mon"arch, n. Etym: [F. monarque, L. monarcha, fr. Gr. Archi-.]
1. A sole or supreme ruler; a sovereign; the highest ruler; an emperor, king, queen, prince, or chief. He who reigns Monarch in heaven, … upheld by old repute. Milton.
2. One superior to all others of the same kind; as, an oak is called the monarch of the forest.
3. A patron deity or presiding genius. Come, thou, monarch of the vine, Plumpy Bacchus. Shak.
4. (Zoöl.)
Defn: A very large red and black butterfly (Danais Plexippus); — called also milkweed butterfly.