veins
Carry blood back
Veins are blood vessels that carry blood toward the heart, as distinguished from arteries, which carry blood away.
The word extends to similar tubular structures: the veins of a leaf, the veins in marble or wood grain.
A vein can also be a distinctive quality running through something: a vein of dark humor throughout the novel, in a similar vein.
In mining, a vein is a narrow deposit of ore or mineral in rock.
Tubes carrying oxygenated blood
- capillariesTiniest blood vessels
- bloodBody's oxygen carrier
- heartCirculatory system's pump
- plasmaElectrified matter state
hemoglobin · circulation · cardiovascular · pulmonary · thrombosis · phlebotomy · clotting · vessels
Metal-bearing rock
- lodeMineral-rich rock seam
- quartzCrystalline silicon dioxide
- goldElement seventy-nine
- silverLustrous white precious metal
copper · mining · seam · deposit · mineralogy · gemstone · fissure · stratum
Plant's photosynthetic organ
- midribCentral vein of foliage
- petioleA leaf's supporting stem
- xylemPlant water conduit
- phloemPlant sugar-transport tissue
sap · vascular · chlorophyll · transpiration · stomata · lamina · venation · pinnate
arteries
Tubes carrying oxygenated blood
- capillariesTiniest blood vessels
- bloodBody's oxygen carrier
- heartCirculatory system's pump
plasma · hemoglobin · circulation · cardiovascular · pulmonary · thrombosis · phlebotomy · clotting · vessels · aorta
ore
Metal-bearing rock
silver · copper · mining · seam · deposit · mineralogy · gemstone · fissure · stratum · extraction
leaf
Plant's photosynthetic organ
phloem · sap · vascular · chlorophyll · transpiration · stomata · lamina · venation · pinnate · palmate
marbled
Streaked with irregular patterns
- streakedMarked with bands
- striatedMarked with parallel grooves
- branchingSplitting into separate directions
tracery · webbed · reticulated · filigree · variegated · mottled · rivulets · threads · lines · grain
lifeblood
Essential animating element
flow · undercurrent · thread · stream · channel · conduit · essence · core · heart · running
- biology termscell, DNA, genetics, genetic, evolution
- Circulatory Systemheart rate, blood, artery, capillary, arteries
- plant anatomyroot, stem, leaves, stems, leaf
- circulation systemsblood vessels, arteries, capillaries, heart, aorta
- tree partstrunk, branches, branch, bark, root
- cardiopulmonaryheart rate, lungs, blood pressure, circulation, breathing
veinsveinless
Without linear markings
smooth · unmarked · featureless · unpatterned
- in the vein ofSharing stylistic qualities with
- in the same veinAlong related lines
- deep-vein thrombosisClot in lower limb vessel
- varicose veinsDilated superficial vessels with pooling
- spider veinSmall dilated blood vessel
- jugular veinNeck's primary blood channel