Cellulose molecules arranged into ordered strands during growth of the tree.

A fibrous product from wood.

Dry wood is chiefly made of

A source of vanillin for flavoring and to produce solvents

Lumber with rings at angle 45 to 90 degrees with the wide surface

The fiber saturation point of wood is when

The wood has bitter taste

Wood has solitary pores

Paratracheal parenchyma both aliform and confluent

A member of the oak family

Distinguished by its empty resin canals

Oil ducts arranged in concentric formation or in tangential lines

Taguile and R. Lauan can also be differentiated by

Two complementary bordered pits on adjacent cells

Belongs to the genus Dracontamelon

Apitong is distinguished from guijo by its

The most destructive stage in wood boring insect

The most important properties of wood are

The ratio of the dielectric permitivity of the material so that of free surface

A renewable resource the most abundant naturally occurring polymeric composite material

A measure of roundwood volume stacked 1.2 x 1.2 x 2.4 m

A polysaccharide of repeating glucose molecule in wood

cellulose molecules arranged in an orderly manner

Specialized structures in hardwood in conducting sap upward

Thin plates in the walls of the vessel that allow sap to pass from one cavity to another

Strips of short horizontal that extends in a radial direction

Thin, intercellular layer hat bind all cells in wood

The principal component of wood comprising 70-8%

Complex phenolic polymers of irregular structure in wood

Consist of cellulose and hemicellulose

Organic material such as tannins and waxes in wood

Speeder sound in wood is directly related to variability of

An index of the amount of wood substance a piece contains

With completely filled resin canals

Bark or lack of wood

Relates the fiber direction to the edge of the piece

A form of cross grain in wood

Cause by fibers growing in a winding course about the bole

Most evident difference of reaction to normal wood

Indicated by fiber breakage on on grain

The irreversible effect of the high temperature of wood is one of the degradation of wood substance which results in

Higher values of strength are obtained from wood loaded at

When a load is maintained on a beam, additional time dependent deformation occurs and is termed as________.

In engineering, the progressive damage that occurs in wood due to cyclic loading

Treatment which reduce combustibility in wood

Usually do not have major effect on wood strength

A fungal organism that attack wood

The growth of wood destroying fungi is dependent on

A kind of decay where only the cellulose are attacked

A kind of decay when both the cellulose and lignin is removed

The first strength property of wood affected by decay.

Growth of decay fungi in lumber and other wood products can be prevented by

The sour smell of logs submerged in water is an indication of

Damaged wood in salt or brackish water

An example of wood-boring mollusks

A crustaceans which also belongs to marine borers

A blackish or brownish oil made by distilling coal-tar

Recommended for treatment for treatment of marine piles

An example of fiber-based panel material

Made by laminating together piles or paper about 1/16 in. thick

Wood treated with a thermosetting fiber-penetrating resin and cured without compression

Compressed wood treated with a thermosetting fiber-penetrating resin

A compressed wood containing no resin

It bulks the fiber to keep partially swollen

An adhesive that is applied in a temperature below 20degree celsius

An adhesive that is applied in a molten state and forms a bond on cooling to a solid state

A comprehensive term for a non-volatile viscous plant exudates which either dissolve or swell up in contact with water.

A glue joint that is poorly bonded because of insufficient quantity of adhesive remained in the joint.

In woodworking, any substance used to fill the holes and gaps in planned or sanded surfaces before applying with coatings

A structural member supporting a load applied transversely into it

The process of forming curved wood by steaming or boiling the wood and bending it to form

A cutting free from rot, pith, shake, wane

When the pith falls entirely within the four faces of piece of wood anywhere on its length

The state in which particles of the adhesive are held together internally

The dead inner core, of the woody stem

An instrument that used for measuring the amount of water vapor in the atmosphere

Cooperage used as containers for semi-dry solid products

A highly purified forms of cellulose used in the manufacture of rayon, tire, cord, cellophane plastics, etc.

Blister in plywood maybe caused by

A swirl or twist in the grain of the wood which usually occurs near a knot but does not contain in a knot.

The small soft core occurring in the structural center of the log

General term for cup, bow, twist, or crook

A piece of sawn timber 2 inches or less in thickness and 5 inches or more in, width

Pinholes are borer holes not over

The defective core of a log characterized by brittleness which occurs in some tropical hardwoods

Applied to sawn timber that is stacked without stickers

Timber at this condition will neither gain or lose moisture

Sawn timber usually less than 6 feet long

Thin strips of wood placed between layers of lumber to allow free circulation of air

Lumber not planed or otherwise machined

The cutting (unit) system of lumber grading is used in

Rough lumber is graded based on the

Latex derived from pili tree

bark extract which can convert animal hide to leather

Whole end product ready for use without need of processing

A device used in finding the areas of map

A definite permanent position and accessible point of known elevation

Rosin obtained from Apitong

Lumber content of logs based on a specific log rule