Marijuana Horticulture: The Indoor/Outdoor Medical Grower's Bible

extraction fans are measured in the cfm of air they can move.
    chelate: combining nutrients in an atomic ring that is easy for plant to absorb
    chimera (also chimaera): 1. a plant or organism with tissues from at least two genetically distinct parents 2. A fire-breathing female monster most often portrayed as a lion, goat, and serpent composite.
    chlorophyll: the green photosynthetic matter of plants: Chlorophyll is found in the chloroplasts of a cell and is necessary to photosynthesis.
    chlorosis: the condition of a sick plant with yellowing leaves due to inadequate formation of chlorophyll: Chlorosis is caused by a nutrient deficiency, often iron or imbalanced pH.

Chlorosis
    chromosomes: microscopically small, dark-staining bodies visible in the nucleus of a cell at the time of nuclear cell division; the number in any species is usually constant. Chromosomes contain the genetic material of a species. Cannabis has 10 pairs of chromosomes.
    circuit: a circular route traveled by electricity from a power source, through an outlet, and back to ground
    clay: soil made of very fine organic and mineral particles: Clay drains slowly and is not suitable for container gardening.
    climate: the average condition of the weather in a grow room or outdoors

Cola
    clone: 1. a rooted cutting of a plant 2. asexual propagation
    CO 2 enrichment: used to augment grow room or greenhouse atmosphere to speed growth
    cola: Mexican and North American slang word for a marijuana flower top: Cola in Spanish actually means tail.
    colchicine: poisonous alkaloid from the autumn crocus, used in plant breeding to induce polyploid mutations
    cold: for cannabis, air temperatures below 50°F(10°C)
    cold frame: an unheated outdoor structure usually clad in glass or clear plastic, used to protect and acclimatize seedlings and plants
    color spectrum: the band of colors (measured in nm) emitted by a light source
    color tracer: a coloring agent that is added to many commercial fertilizers so the horticulturist knows there is fertilizer in the solution: Peters has a blue color tracer.
    compaction: soil condition that results from tightly packed soil which limits aeration and root penetration
    companion planting: planting garlic, marigolds, etc., along with cannabis to discourage pests
    compost: mixture of decayed organic matter, high in nutrients: Compost must be well-rotted before use. When too young, decomposition uses nitrogen; after sufficient decomposition, compost releases nitrogen.
    core: the transformer in the ballast is often referred to as a core
    cotyledon: seed leaves, first leaves that appear on a plant
    creeper: marijuana high in CBD having psychoactive qualities that sneak up on smoker: The creeper high usually lasts longer.
    critical daylength: maximum daylength which will bring about flowering in cannabis
    cross-pollination: fertilizing a plant with pollen from an unrelated individual of the same species
    crystal: 1. appearance resin has when found on foliage 2. fertilizers often come in soluble crystals
    cubic foot: volume measurement in feet: width × length × height = cubic feet
    cultivar: a contraction of “cultivated variety,” a variety of plant that has been intentionally created or selected; not naturally occurring
    cure: 1. slow drying process that makes marijuana more pleasant and palatable to smoke 2. to make a sick plant healthy
    cuticle: thin layer of plant wax (cutin) on the surface of the aboveground parts of plants
    cutting: 1. growing-tip cut from a parent plant for asexual propagation 2. clone 3. slip
    cytokinins: plant hormones that promote cell division and growth and delay the aging of leaves
    damping-off: fungus disease that attacks young seedlings and clones causing stem to rot at base: Over-watering is the main cause of damping-off.
    DC (direct current): a continuous electric current that only flows in one direction
    decompose: to rot or decay, etc., through organic chemical change
    dehumidify: to remove moisture from air
    dehydrate: to remove water from foliage
    deplete: to exhaust soil of nutrients, making it infertile: Once a soil is used to grow a container crop, it is depleted.
    desiccate: to cause to dry up: Insecticidal soap desiccates its victims.
    detergent: liquid soap concentrate used: 1. as a wetting agent for sprays and water 2. pesticide, Note: detergent must be totally organic to be safe for plants.
    diapause: A period of plant dormancy during which growth or development is suspended or