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Spiral
a.
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Winding round a cylinder or imaginary axis, and at the same time rising or advancing forward; winding like the thread of a screw; helical.
Spiral
a.
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Of or pertaining to a spiral; like a spiral.
Spiral
a.
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A plane curve, not reentrant, described by a point, called the generatrix, moving along a straight line according to a mathematical law, while the line is revolving about a fixed point called the pole. Cf. Helix.
Spiral
a.
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Anything which has a spiral form, as a spiral shell.
Spirality
n.
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The quality or states of being spiral.
Spirally
adv.
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In a spiral form, manner, or direction.
Spiralozooid
n.
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One of the special defensive zooids of certain hydroids. They have the form of long, slender tentacles, and bear lasso cells.
Spirant
n.
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A term used differently by different authorities; -- by some as equivalent to fricative, -- that is, as including all the continuous consonants, except the nasals m, n, ng; with the further exception, by others, of the liquids r, l, and the semivowels w, y; by others limited to f, v, th surd and sonant, and the sound of German ch, -- thus excluding the sibilants, as well as the nasals, liquids, and semivowels. See Guide to Pronunciation, // 197-208.
Spiranthy
n.
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The occasional twisted growth of the parts of a flower.
Spiration
n.
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The act of breathing.
Spire
v. i.
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To breathe.
Spire
n.
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A slender stalk or blade in vegetation; as, a spire grass or of wheat.
Spire
n.
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A tapering body that shoots up or out to a point in a conical or pyramidal form. Specifically (Arch.), the roof of a tower when of a pyramidal form and high in proportion to its width; also, the pyramidal or aspiring termination of a tower which can not be said to have a roof, such as that of Strasburg cathedral; the tapering part of a steeple, or the steeple itself.
Spire
n.
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A tube or fuse for communicating fire to the chargen in blasting.
Spire
n.
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The top, or uppermost point, of anything; the summit.
Spired
imp. & p. p.
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of Spire
Spiring
p. pr. & vb. n.
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of Spire
Spire
v. i.
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To shoot forth, or up in, or as if in, a spire.
Spire
n.
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A spiral; a curl; a whorl; a twist.
Spire
n.
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The part of a spiral generated in one revolution of the straight line about the pole. See Spiral, n.
Spired
a.
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Having a spire; being in the form of a spire; as, a spired steeple.
Spiricle
n.
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One of certain minute coiled threads in the coating of some seeds. When moistened these threads protrude in great numbers.
Spirifer
n.
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Any one of numerous species of fossil brachipods of the genus Spirifer, or Delthyris, and allied genera, in which the long calcareous supports of the arms form a large spiral, or helix, on each side.
Spirillum
n.
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A genus of common motile microorganisms (Spirobacteria) having the form of spiral-shaped filaments. One species is said to be the cause of relapsing fever.
Spiring
a.
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Shooting up in a spire or spires.
Spirit
n.
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Air set in motion by breathing; breath; hence, sometimes, life itself.
Spirit
n.
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A rough breathing; an aspirate, as the letter h; also, a mark to denote aspiration; a breathing.
Spirit
n.
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Life, or living substance, considered independently of corporeal existence; an intelligence conceived of apart from any physical organization or embodiment; vital essence, force, or energy, as distinct from matter.
Spirit
n.
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The intelligent, immaterial and immortal part of man; the soul, in distinction from the body in which it resides; the agent or subject of vital and spiritual functions, whether spiritual or material.
Spirit
n.
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Specifically, a disembodied soul; the human soul after it has left the body.