regeneration n - the act of forcing a plant to revert to the vegetating state after it has been flowered and harvested
relative humidity n - the ratio of the amount of water in the air at a give temperature to the maximum amount it could hold at that temperature; expressed as a percentage
resin n - viscous substances, containing THC and other cannabinoids, obtained as exudations from the leaves, flowers, and stems of the cannabis plant
resin gland n - tiny clear, white, or amber structure, covering the surface of the leaves, buds, and stems of a flowering cannabis plant, that secrets a viscous substance containing THC and other cannabinoids
respiration n - the process of taking in oxygen from the air and releasing carbon dioxide
ripe adj - fully developed or matured and ready to be harvested
ripen v - to cause to become fully developed or matured
rock wool n - a light fibrous material made from molten rock and used as a substrate in hydroponic gardening
root n - the usually underground organ that lacks buds or leaves or nodes; absorbs water and mineral salts; usually it anchors the plant to the ground; v - to grow roots or a root; to cause to put out roots and grow
root ball n - dense clump of roots and growing medium
rooting hormone n - substance used by the plant to induce and promote root growth and development
root rot n - plant disease resulting from over-watering and lack of oxygen; characterized by browning and damp rot of the roots causing slow or stunted growth and wilting
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