Three children or offspring born at one birth.

See codon.

The grouping of three notes per beat, usually in contrast to the standard grouping of two notes per beat.

three (3) early childhood educators who have applied to and have been accepted by the Certification Council to go through the certification process and who are working together with the manual/criteria, visiting and observing at each other's centres and giving feedback on their observations of each other.

A combination of three simple lenses cemented together. Two positive lenses with a negative lens between them can produce a well-corrected system.

(Class B) See Opal Triplet.

Triplet - A gem of three layers; a desirable piece of material cemented between a more durable back-up stone and a layer of clear quartz.

A lens or eyepiece made of three pieces of glass (or other materials) selected so as to reduce the chromatic aberration of the lens.

An electronic state of a molecule in which two spins are aligned. This term is derived from spectroscopy: a system of two aligned spins has three possible orientations with respect to a magnetic field; each has a different energy, resulting in sets of three field-dependent spectral lines (see doublet, singlet.)

A sequence of three nucleotides. Typically refers to the codons and the corresponding genetic code.

A triplet is a fabricated stone composed of three layers that are glued or epoxied together. An opal triplet is made by putting a thin layer of opal between a crystal clear layer of quartz and a layer of onyx or ironstone. The top layer of quartz protects the thin layer of opal from scratches and fractures. A doublet is just a triplet without the top layer of quartz.

Gem composed of three cross-sections pasted together. The top portion, which is the portion that is visible, consists of a naturally occurring, valuable gem, while the bottom two portions are low-grade material, such as glass or rock crystal.

one of three offspring born at the same time from the same pregnancy

a set of three similar things considered as a unit

a doublet with a third, top, layer made of a tough transparent material like colorless quartz

a group of three notes played in the same amount of time it normally takes to play two

an ammolite gem adhered to black onyx and topped with a spinel cabachon

a poem of three lines

a set of three equally spaced Spikes of roughly equivalent power

a set of three notes played evenly in the amount of time normally reserved for two notes of the same value

a single lens with three elements

a slice of natural opal, sandwiched between a quartz cap and a black stone backing

a small slice of opal backed by a layer of onyx in the rear for strength and topped with a natural quartz crystal cap which prevents the opal from being scratched

a thin layer of precious opal, onto one face of which is fixed an opaque base of natural or artificial material, and onto the other a clear quartz domed top

a three-lined stanza or poem

a three-seater bike, as used by The Goodies

a triple layered stone

A triplet is a group of three notes that are played in the space where two notes would noramlly go. They are indicates with a "3" above the grouping.

An assembled stone. It usually consists of two main portions, top and bottom, separated by a thin layer of cement which can be colored to simulate the color of the gemstone the triplet imitates. In the case of opal triplets a very thin layer of precious opal is sandwiched between a black backing and a transparent cap on top.

A group of three notes to be played in time of one note to the next higher value.

A sequence of three nucleotides in the DNA sequence. Each triplet represents the code for a particular amino acid.

Group of three equal-valued notes played in the time of two; indicated by a bracket and the number 3.

Three-base sequence of mRNA that codes for a specific amino acid or termination codon. PICTURE

group of three trial areas, each subject to a different treatment. Within each triplet, one area will be allocated to proactive culling, one to reactive culling and one to survey only.

A technique of combining various or similar gemstones in three layers to create an imitation gemstone. For example, an opal triplet is a thin layer of opal sandwiched between a quartz top and a colored matrix backing material such as black onyx. It is held together by gem cement or gelatin to enhance the color. Please note that extreme care must be taken in cleaning any jewelry that has a triplet or doublet (two layers of material) mounting. Do not soak them in any jewelry cleaner or use an ultrasonic cleaner. Please see our proper care and cleaning section on this web site.

A sequence of three nucleotides of DNA which specifies an amino acid. The elucidation of the genetic code involved the binding of charged tRNA species to chemically synthesized ribonucleotide triplets.

A stanza of three lines usually with a single rhyme.

A three layer, glued together composite stone. Opal is often backed (see doublet), and sometimes capped with a clear covering.

One of three children, born to one mother very closely in time. If a composer uses a lot of triplets he has probably been taking a fertility drug.

a group of three notes to be performed in the time of two ordinary notes of the same kind.

A man-made creation of three parts that normally includes a clear protective top layer fused together with a thinly sliced gem and a clear or colored adhesive.

A stone comprising a thin layer of natural opal with an attached dark backing and a clear capping.

The three nucleotide pairs that compose a codon.

(Triplex) - A thin slice of light opal attached to a black or dark background with a protective crystal or glass dome glued to the top.

A compound lens assembly comprised of three lenses. Undershoot The amount that a cooling cycle in a thermal feedback control system cools beyond the set point. Valence Band The energy level which contains molecularly bound electrons which can not move within the crystal lattice. For there to be conduction in a semi-conductor, valence electrons much be stimulated to overcome the energy gap and enter the conductance band.

A triplet is a manufactured stone that is made by sandwiching three thin layers of stones together. For example, an opal triplet had a top, protective layer of clear quartz, a thin middle layer of opal, and a base layer of dark, color-enhancing matrix (usually black onyx or ironstone).