Sinical
(Sin"i*cal) a. [From Sine.] (Trig.) Of or pertaining to a sine; employing, or founded upon, sines; as,
a sinical quadrant.
Sinigrin
(Sin"i*grin) n. [From NL. Sinapis nigra.] (Chem.) A glucoside found in the seeds of black
mustard (Brassica nigra, formerly Sinapis nigra) It resembles sinalbin, and consists of a potassium salt
of myronic acid.
Sinister
(Sin"is*ter) a. [Accented on the middle syllable by the older poets, as Shakespeare, Milton,
Dryden.] [L. sinister: cf. F. sinistre.]
1. On the left hand, or the side of the left hand; left; — opposed to dexter, or right. "Here on his sinister
cheek." Shak.
My mother's blood
Runs on the dexter cheek, and this sinister
Bounds in my father's
Shak. In heraldy the sinister side of an escutcheon is the side which would be on the left of the bearer of the
shield, and opposite the right hand of the beholder.
2. Unlucky; inauspicious; disastrous; injurious; evil; — the left being usually regarded as the unlucky side; as,
sinister influences.
All the several ills that visit earth,
Brought forth by night, with a sinister birth.
B. Jonson. 3. Wrong, as springing from indirection or obliquity; perverse; dishonest; corrupt; as, sinister aims.
Nimble and sinister tricks and shifts.
Bacon.
He scorns to undermine another's interest by any sinister or inferior arts.
South.
He read in their looks . . . sinister intentions directed particularly toward himself.
Sir W. Scott. 4. Indicative of lurking evil or harm; boding covert danger; as, a sinister countenance.
Bar sinister. (Her.) See under Bar, n. — Sinister aspect (Astrol.), an appearance of two planets
happening according to the succession of the signs, as Saturn in Aries, and Mars in the same degree of
Gemini. — Sinister base, Sinister chief. See under Escutcheon.
Sinister-handed
(Sin"is*ter-hand"ed) a. Left- handed; hence, unlucky. [Obs.] Lovelace.
Sinisterly
(Sin"is*ter*ly), adv. In a sinister manner. Wood.
Sinistrad
(Sin"is*trad) adv. [L. sinistra the left hand + ad to.] (Anat. & Zoöl.) Toward the left side; sinistrally.
Sinistral
(Sin"is*tral) a.
1. Of or pertaining to the left, inclining to the left; sinistrous; — opposed to dextral.
2. (Zoöl.) Having the whorls of the spire revolving or rising to the left; reversed; — said of certain spiral
shells.
Sinistrality
(Sin`is*tral"i*ty) n. The quality or state of being sinistral.
Sinistrally
(Sin"is*tral*ly) adv. Toward the left; in a sinistral manner. J. Le Conte.
Sinistrin
(Sin"is*trin) n. [L. sinister left.] (Chem.) A mucilaginous carbohydrate, resembling achroödextrin,
extracted from squill as a colorless amorphous substance; — so called because it is levorotatory.
