ma·ran·ta 
(mə-răntə)
(mə-răntə)n.
1. Any of several tropical American plants of the genus Maranta, including the arrowroot, having thin, ovate, usually spotted leaves and irregular flowers.
2. An edible starch made from these plants.
[After Bartolomeo Maranta (died 1571), Italian herbalist.]
- on the face of it
- on the fence
- on the fly
- on the front burner
- on the go
- on the ground
- on the heels of
- on the hoof
- on the horns of a dilemma
- on the house
- on the increase
- on the inside
- on the job
- on-the-job
- on the level
- on the line
- on the loose
- on the make
- on the march
- on the market
- on the mend
- on the money
- on the move
- on the nose
- on the off chance