H n.
und in the alphabet, as sh, th, th, as in shall, thing, thine (for zh see §274); also, to modify the sounds of some other letters, as when placed after c and p, with the former of which it represents a compound sound like that of tsh, as in charm (written also tch as in catch), with the latter, the sound of f, as in ph…
LENS n.
s, for changing the direction of rays of light, and thus magnifying objects, or otherwise modifying vision. In practice, the curved surfaces are usually spherical, though rarely cylindrical, or of some other figure. Lenses
LEVER n.
which are two or more other points where forces are applied; -- used for transmitting and modifying force and motion. Specif., a bar of metal, wood, or other rigid substance, used to exert a pressure, or sustain a weight, at one point of its length, by receiving a force or power at a second, and turning at a third on a…
PARTICIPLE n.
h partaking of the nature both verb and adjective; a form of a verb, or verbal adjective, modifying a noun, but taking the adjuncts of the verb from which it is derived. In the sentences: a letter is written; being asleep he did not hear; exhausted by toil he will sleep soundly, -- written, being, and exhaustedare part…
PRIME a.
ation of magnetic force. (b) An engine, or machine, the object of which is to receive and modify force and motion as supplied by some natural source, and apply them to drive other machines; as a water wheel, a water- pressure engine, a steam engine, a hot-air engine, etc. (c) Fig.: The original or the most effective fo…