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stimulant (stlm'ulant) n. [L. stimu- 

 lare, to incite.] A stimulus-pro- 

 ducing agent (phys.}. 



stimulation (stlm'ula'shun) n. L. 

 stimulare, to incite.] Excitation 

 or irritation of an organism or part 

 by external influence, mechanical, 

 chemical, etc. (phys.}. 



stimulose (stlm'ulos) a. [L. stimu- 

 lare, to incite.] Furnished with 

 stinging hairs or cells (biol.}. 



stimulus (stim'ulus) n. [L. stimulare, 

 to incite.] An agent which causes 

 a body or some part of it to react 

 when affected by it (phys.}. 



sting (sting) n. [A.S. stingan, to 

 sting.] A stinging hair or cell 

 (biol.} ; the spine of a sting-ray ; 

 an offensive and defensive organ 

 for piercing, and usually also for 

 inoculating with poison, as in the 

 wasp (zool.}. 



stinging capsule, a nematocyst. 



stipe (stip) n. [L. stipes, stock, stalk.] 

 The stem bearing the pileus in 

 Agarics ; the stem of palms and 

 tree ferns ; the stem of fern fronds 

 (bot.} ; a stipes (zool.}. 



stipel (stf pel) n. [L. stipes, a stalk.] 

 An outgrowth of leaflets resembling 

 the stipule of a leaf-base (bot.}. 



stipellate (stl'pglat) a. [L. stipes, 

 stalk.] Bearing stipels (bot.}. 



stipes (stfpez) n. [L. stipes, stalk.] 

 The distal part of the protopodite 

 of the first maxilla of Insects ; the 

 peduncle of a stalked eye (zool.}. 



stipiform (sti'piform) a. [L. stipes, a 

 stalk ; forma, shape.] Resembling 

 a stalk or stem. 



stipitate (stlp'itat) a. [L. stipes, a 

 stalk.] Stalked ; supported on a 

 stalk. 



stipular (stip'ular) a. [L. stipula, 

 a stem.] Like, pert, or growing in 

 place of stipules (bot.}. 



stipulate (stlp'ulat) a. [L. stipula, 

 a stem.] Furnished with stipules 

 (bot.}. 



stipule (stlp'ul) n. [L. stipula, a 

 stem.] One of two foliaceous or 

 membranaceous processes devel- 

 oped at the base of a leaf petiole, 

 sometimes in tendril or spine form 

 (bot.}. 



stipuliferous, stipulate. 



stipuliform (stip'uliform) a. [L. 



stipula, stem ; forma, shape.] In 

 the form of a stipule (bot.}. 



stirp (sterp), stirps (sterps) n. [L. 

 stirps, root-stock.] The sum-total 

 of germs or gemmules to be found 

 in a newly fertilized ovum. 



stock (st6k) n. [A.S. stocc, a post.] 

 An asexual zooid which produces 

 sexual zooids of one sex by gemma- 

 tion, as in Polychaets (zool.}. 



stolon (sto'lon) . [L. stolo, a shoot.] 

 A creeping stem or runner capable 

 of developing rootlets and stem, 

 and ultimately forming a new 

 individual (6ot.} ; a cylindrical stem 

 of some Polyzoa from which indi- 

 viduals grow out at intervals ; a 

 horizontal tubular branch of some 

 Coelenterates from which new 

 zooids arise by budding ; the cado- 

 phore of Tunicates (zool.}. 



stolonate (sto'lonat) . [L. stolo, a 

 shoot.] Having stolons ; resem- 

 bling a stolon ; developing from a 

 stolon ; appl. plants and animals 

 which develop by means of stolons 

 (biol.\ 



stoloniferous (sto'lonlf'e'rus) a. [L. 

 stolo, a shoot ; ferre, to carry.] 

 Bearing stolons (biol.}. 



stoma (sto'ma) ., stomata (stom'ata) 

 plu. [Gk. stoma, mouth.] A small 

 mouth-like orifice ; minute openings 

 in the epidermis of plants, especially 

 on the under surface of leaves 

 (biol.}. 



stomach (stum'ak) n. [Gk. stomachos, 

 th roat, gullet.] The sac-like portion 

 of the food canal beyond the gullet, 

 in vertebrates ; a corresponding 

 part, or the entire digestive cavity, 

 of invertebrates (zool.}. 



stomachic (stomak'ik) a. [Gk. stom- 

 achos, gullet.] Pert, the stomach. 



stomatal (stom'atal) a. [Gk. stoma, 

 mouth.] Pert, or like a stoma ; 

 stomatic. 



stomate (sto'mat) a. [Gk. stoma, 

 mouth.] Bearing stomata or a 

 stoma. 



stomatiferous (stomatlf'eYus) a. [Gk. 

 stoma, mouth ; L. ferre, to carry.] 

 Bearing stomata. 



stomatogastric (stom'atogas'trfk) a. 



[Gk. stoma, mouth \gaster, stomach.] 



Pert, mouth and stomach ; appl. 



the visceral system of nerves 



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