seed n - A ripened plant ovule containing an embryo
seeded adj - Containing seeds; filled with seeds
seedling n - young plant grown from a seed
sequence timer n - a device used to control the frequency and duration of the operation of various indoor gardening equipment such as CO2 regulators, ventilation fans, and water or nutrient pumps.
soil n - the top layer of the earth's surface, consisting of rock and mineral particles mixed with organic matter
spectrum n - an ordered array of the components of an emission or wave as in the color spectrum of visible light
spider mite (tetranychid) n - a yellow, white, brown, red or two-spotted web-spinning mite, too small to be distinguished by the naked eye, that attacks cannabis plants, spinning a fine web-like due and feeding on the underside of the foliage
sprout n - any new growth of a plant such as a new branch or a bud 2: a newly grown bud (especially from a germinating seed) v - produce buds, branches, or germinate
stabilized hybrid n - plant hybrid that, through a program of inbreeding, consistently produces similar offspring
stamen n - the male reproductive organ of a flower, consisting of the anther and filament,
responsible for secreting and furnishing pollen
stem n - a slender or elongated structure responsible for supporting a plant or a plant part or plant organ and delivering nutrient from the roots to the plants infrastructure
strain n - The collective descendants of a common ancestor; a race, stock, line, or breed; A group of progeny of the same species, having distinctive characteristics but not usually considered a separate breed or variety
stigma n - the apical end of the style where pollen is deposited; The receptive apex of the pistil of a flower, on which pollen is deposited at pollination
stomata n - minute pores in the epidermis of a leaf or stem through which gases and water vapor pass
style n - The usually slender part of a pistil, situated between the ovary and the stigma
substrate n - the medium in which a plant grows
sulfur (S) n - a secondary plant nutrient which is a constituent of certain amino acids, proteins, and vitamins, and is necessary for respiration and metabolism | 
