Pith vs Lumen - What's the difference?
pith | lumen |
The soft, spongy substance in the center of the stems of many plants and trees.
The spongy interior substance of a feather.
The spinal cord; the marrow.
(figuratively) The essential or vital part.
* Shakespeare
To extract the pith from (a plant stem or tree).
To kill (especially cattle or laboratory animals) by cutting or piercing the spinal cord.
(physics) In the International System of Units, the derived unit of luminous flux; the light that is emitted in a solid angle of one steradian from a source of one candela. Symbol: lm.
(anatomy) The cavity or channel within a tube or tubular organ.
(botany) The cavity bounded by a plant cell wall.
(medicine) The bore of a tube such as a hollow needle or catheter.
As nouns the difference between pith and lumen
is that pith is the soft, spongy substance in the center of the stems of many plants and trees while lumen is in the International System of Units, the derived unit of luminous flux; the light that is emitted in a solid angle of one steradian from a source of one candela. Symbol: lm.As a verb pith
is to extract the pith from (a plant stem or tree).pith
English
Noun
(-)- The pith of my idea is truth.
- enterprises of great pith and moment
