pencil

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pencil

(pĕn-sĭl)
A material rolled into cylindrical form; may contain a caustic substance or a therapeutic paste or ointment.
References in periodicals archive ?
The most commonly used design of a PGE consists in a pencil lead introduced in a commercially available mechanical pencil acting as holder.
Two major advantages of the technique are that it is inexpensive and the "pencil lead" is extremely stable, Swager says.
Initially, the steel collet and pencil lead form a union and are loaded in negative y-direction.
Then, grate pencil lead over each sheet with sandpaper.
(Download a sample pencil lead sheet and Excel lead tracking spreadsheet at biz-comm.com/leads.)
The Sheaffer Sentinel ballpoint and propelling pencil is presented in an elegant brushed chrome finish with push button release for ballpoint and pencil lead advance.
Some children need a different pen or pencil because they need to be able to feel the pressure of the pencil lead against the paper.
With fiber optics, another emerging option, light is captured in a funnel unit, directing a beam into a fiber, optic thread the thickness of pencil lead. Fiber optics are a great choice for lighting small areas, and the fixture creates no heat or ultraviolet energy, and is useful for paintings and heat/light-sensitive decor, because the fixtures are cool enough to handle.
Corneal stromal and/or penetrating ocular injuries from pencils and pencil lead are more common in childhood and may lead to intraocular infection or severe intraocular sterile inflammatory reaction.
Stabilo excels in various categories, such as colouring, markers and highlighters, ball point pens, roller ball pens and pencil lead refills.
A six-inch clump of hair the width of a pencil lead can show how much substance abuse has taken place over 12 months.
Staedtler has responded by developing what it calls the antibreak system, which works by surrounding the soft pencil lead with a white protective coating.