1. To guide or conduct with the hand, or by means of some physical contact connection; as, a father leads a child; a jockey leads a horse with a halter; a dog leads a blind man. If a blind man lead a blind man, both fall down in the ditch. (Wyclif (Matt. Xv. 14)) They thrust him out of the city, and led him unto the brow of the hill. (Luke iv. 29) In thy right hand lead with thee The mountain nymph, sweet liberty. (Milton)
2. To guide or conduct in a certain course, or to a certain place or end, by making the way known; to show the way, especially. By going with or going in advance of. Hence, figuratively: to direct; to counsel; to instruct; as, to lead a traveler; to lead a pupil. The lord went before them by day in a pillar of a cloud, to lead them the way. (ex. Xiii. 21) He leadeth me beside the still waters. (Ps. Xxiii. 2) This thought might lead me through the worlds vain mask. Content, though blind, had i no better guide. (Milton)
3. To conduct or direct with authority; to have direction or charge of; as, to lead an army, an exploring party, or a search; to lead a political party. Christ took not upon him flesh and blood that he might conquer and rule nations, lead armies, or possess places. (South)
4. To go or to be in advance of; to precede; hence, to be foremost or chief among; as, the big sloop led the fleet of yachts; the guards led the attack; Demosthenes leads the orators of all ages. As Hesperus, that leads the sun his way. (Fairfax) And lo ! Ben Adhem's name led all the rest. (Leigh Hunt)
5. To draw or direct by influence, whether good or bad; to prevail on; to induce; to entice; to allure; as, to lead one to espouse a righteous cause. He was driven by the necessities of the times, more than led by his own disposition, to any rigor of actions. (Eikon Basilike) Silly women, laden with sins,led away by divers lusts. (2 Tim. Iii. 6 (rev. Ver))
6. To guide or conduct one's self in, through, or along (a certain course); hence, to proceed in the way of; to follow the path or course of; to pass; to spend. Also, to cause (one) to proceed or follow in (a certain course). That we may lead a quiet and peaceable life. (1 Tim. Ii. 2) Nor thou with shadowed hint confuse a life that leads melodious days. (Tennyson) You remember . . . The life he used to lead his wife and daughter. (Dickens)
7. To begin a game, round, or trick, with; as, to lead trumps; the double five was led. To lead astray, to guide in a wrong way, or into error; to seduce from truth or rectitude. To lead captive, to carry or bring into captivity. To lead the way, to show the way by going in front; to act as guide.
Origin: oe. Leden, as. Ldan (akin to os. Ldian, D. Leiden, g. Leiten,Icel. Lea, Sw. Leda, dan.lede), properly a causative fr. As. Lian to go; akin to OHG. La, Icel. La,Goth. Leipan (in comp). Cf. Lode, Loath.
1. (Science: chemistry) One of the elements, a heavy, pliable, inelastic metal, having a bright, bluish colour, but easily tarnished. It is both malleable and ductile, though with little tenacity, and is used for tubes, sheets, bullets, etc. Its specific gravity is 11.37. It is easily fusible, forms alloys with other metals, and is an ingredient of solder and type metal. Atomic weight.4. Symbol pb (L. Plumbum). It is chiefly obtained from the mineral galena, lead sulphide.
3. A small cylinder of black lead or plumbago, used in pencils. Black lead, graphite or plumbago,; so called from its leadlike appearance and streak. Coasting lead, a sounding lead intermediate in weight between a hand lead and deep-sea lead. Deep-sea lead, the heaviest of sounding leads, used in water exceeding a hundred fathoms in depth. Hand lead, a small lead use for sounding in shallow water. Krems lead, Kremnitz lead [so called from Krems or Kremnitz, in Austria], a pure variety of white lead, formed into tablets, and called also Krems, or Kremnitz, white, and Vienna white. Lead arming, tallow put in the hollow of a sounding lead. See to arm the lead (below). Lead colic. See colic. Lead colour, a deep bluish gray colour, like tarnished lead. Lead glance.
(Science: botany) lead plant, crocoite. Sugar of lead, acetate of lead. To arm the lead, to fill the hollow in the bottom of a sounding lead with tallow in order to discover the nature of the bottom by the substances adhering. To cast, or heave, the lead, to cast the sounding lead for ascertaining the depth of water. White lead, hydrated carbonate of lead, obtained as a white, amorphous powder, and much used as an ingredient of white paint.
1. The act of leading or conducting; guidance; direction; as, to take the lead; to be under the lead of another. At the time i speak of, and having a momentary lead, . . . I am sure i did my country important service. (Burke)
5. (Science: chemical) a lode.
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... ?% iron ?% zinc ?% manganese ?% molybdenum ?% lithium ?% cobalt ?% nickel ?% boron ?% calcium ?% vitamin b12 ?% folate ?% vitamin d ?% mercury ?% lead ?% cadmium 3% Bilirubin 3% Phospholipids
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... with sufficient drugs or a patient’s weak immune system failing to eliminate the infection at the conclusion of phase 1 of treatment could lead to a run-away infection causing serious and life-threatening infection or death. Too little bio-agent Administering insufficient bio-agent, over-use ...
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@wildfunguy Even in deterministic chaotic systems, the smallest perturbation can lead to drastically different situations, so the inevitability of a particular outcome has little to do with determinism. The real question is, is the universe structured in such a ...
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... then they should have been created gradually from some simple primordial reactions that became more and more crowded. Isolated random reactions leads to equilibrium, so this means that an external source of energy must existed to sustain and further promote the reactions. The most likely candidate ...
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... two factors: time and location . As you know ,the differentiation began since the fertilization , later contact with neighboring cell can also lead to farther differentiation. I think the first differentiation is decided by gene , the konwledge of gene and epigenetics may help you .
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