"automatic" devices permitted after the Butlerian Jihad.

SHAH-NAMA: the half-legendary First Book of the Zensunni Wanderers.

SHAI-HULUD: Sandworm of Arrakis, the "Old Man of the Desert," "Old Father Eternity," and "Grandfather of the Desert." Significantly, this name, when referred to in a certain tone or written with capital letters, designates the earth deity of Fremen hearth superstitions. Sandworms grow to enormous size (specimens longer than 400 meters have been seen in the deep desert) and live to great age unless slain by one of their fellows or drowned in water, which is poisonous to them. Most of the sand on Arrakis is credited to sandworm action.

(See Little Maker.)

SHARI-A: that part of the panoplia propheticus which sets forth the superstitious ritual. (See Missionaria Protectiva.) SHADOUT: well-dipper, a Fremen honorific.

SHAITAN: Satan.

SHIELD, DEFENSIVE: the protective field produced by a Holtzman generator. This field derives from Phase One of the suspensor-nullification effect. A shield will permit entry only to objects moving at slow speeds (depending on setting, this speed ranges from six to nine centimeters per second) and can be shorted out only by a shire-sized electric field. (See Lasgun.) SHIELD WALL: a mountainous geographic feature in the northern reaches of Arrakis which protects a small area from the full force of the planet's coriolis storms.

SHIGAWIRE: metallic extrusion of a ground vine. (Narvi narviium) grown only on Salusa Secundus and III Delta Kaising. It is noted for extreme tensile strength.

SIETCH: Fremen: "Place of assembly in time of danger. "Because the Fremen lived so long in peril, the term came by general usage to designate any cave warren inhabited by one of their tribal communities.

SIHAYA: Fremen: the desert springtime with religious overtones implying the time of fruitfulness and "the paradise to come."

SINK: a habitable lowland area on Arrakis surrounded by high ground that protects it from the prevailing storms.

SINKCHART: map of the Arrakis surface laid out with reference to the most reliable paracompass routes between places of refuge. (See Paracompass.)

SIRAT: the passage in the O.C. Bible that describes human life as a journey across a narrow bridge (the Sirat) with "Paradise on my right. Hell on my left, and the Angel of Death behind."

SLIP-TIP: any thin, short blade (often poison-tipped) for left-hand use in shield fighting.

SNOOPER, POISON: radiation analyzer within the olfactory spectrum and keyed to detect poisonous substances.

SOLARI: official monetary unit of the Imperium, its purchasing power set at quatricentennial negotiations between the Guild, the Landsraad, and the Emperor.

SOLIDO: the three-dimensional image from a solido projector using 360-degree reference signals imprinted on a shigawire reel. Ixian solido projectors are commonly considered the best.

SONDAGI; the fern tulip of Tupali.

SOO-SOO SOOK!: water-seller's cry on Arrakis. Sook is a market place. (See Ikhut-eigh!)

SPACING GUILD: see Guild.

SPICE: see Melange.

SPICE DRIVER: any Dune man who controls and directs movable machinery on the desert surface of Arrakis.

SPICE FACTORY: see Sandcrawler.

SPOTTER CONTROL: the light ornithopter in a spice-hunting group charged with control of watch and protection.

STILLSUIT: body-enclosing garment invented on Arrakis. Its fabric is a micro-sandwich performing functions of heat dissipation and filter for bodily wastes.

Reclaimed moisture is made available by tube from catchpockets.

STILLTENT: small, scalable enclosure of micro-sandwich fabric designed to reclaim as potable water the ambient moisture discharged within it by the breath of its occupants.

STUNNER: slow-pellet projectile weapon throwing a poison- or drug-tipped dart.

Effectiveness limited by variations in shield settings and relative motion between target and projectile.

SUBAKH UL KUHAR: "Are you well?": a Fremen greeting.

SUBAKH UN NAR: "I am well. And you?": traditional reply.

SUSPENSOR: secondary (low-drain) phase of a Holtzman field generator. It nullifies gravity within certain limits prescribed by relative mass and energy consumption.

TAHADDI AL-BURHAN: an ultimate test from which there can be no appeal (usually because it brings death or destruction).

TAHADDI CHALLENGE: Fremen challenge to mortal combat, usually to test some primal issue.

TAQWA: literally: "The price of freedom." Something of great value. That which a deity demands of a mortal (and the fear provoked by the demand).

TAU, THE: in Fremen terminology, that oneness of a sietch community enhanced by spice diet and especially the tau orgy of oneness elicited by drinking the Water of Life.

TEST-MASHAD: any test in which honor (defined as spiritual standing) is at stake.

THUMPER: short stake with spring-driven clapper at one end. The purpose: to be driven into the sand and set "thumping" to summon shai-hulud. (See Maker hooks.) TIDAL DUST BASIN: any of the extensive depressions in the surface of Arrakis which have been filled with dust over the centuries and in which actual dust tides (see Sandtides) have been measured.

TLEILAX: lone planet of Thalim, noted as renegade training center for Mentats; source of "twisted" Mentats.

T-P: idiomatic for telepathy.

TRAINING: when applied to Bene Gesserit, this otherwise common term assumes special meaning, referring to that conditioning of nerve and muscle (see Bindu and Prana) which is carried to the last possible notch permitted by natural function.

TROOP CARRIER: any Guild ship designed specifically for transport of troops between planets.

TRUTHSAYER: a Reverend Mother qualified to enter truthtrance and detect insincerity or falsehood.

TRUTHTRANCE: semihypnotic trance induced by one of several "awareness spectrum"

narcotics in which the petit betrayals of deliberate falsehood are apparent to the truthtrance observer. (Note: "awareness spectrum" narcotics are frequently fatal except to desensitized individuals capable of transforming the poison-configuration within their own bodies.)

TUPILE: so-called "sanctuary planet" (probably several planets) for defeated Houses of the Imperium. Location(s) known only to the Guild and maintained inviolate under the Guild Peace.

ULEMA: a Zensunni doctor of theology.

UMMA: one of the brotherhood of prophets. (A term of scorn in the Imperium, meaning any "wild" person given to fanatical prediction.) UROSHNOR: one of several sounds empty of general meaning and which Bene Gesserit implant within the psyches of selected victims for purposes of control. The sensitized person, hearing the sound, is temporarily immobilized.

USUL: Fremen: "The base of the pillar."

VAROTA: famed maker of balisets; a native of Chusuk.