logo-, log-, -logia, -logic, -logical, -logism, -logician, -logian, -logue

1. The inability to speak because of a mental deficiency or an episode of dementia: Alogia is synonymous in this sense with aphasia which is the partial or total loss of the ability to articulate ideas or comprehend spoken or written language because of damage to the brain caused by an injury or a disease.
2. A deficiency in speech that commonly occurs in schizophrenia: Alogias may result from perceptions of those who become detached, isolated, and remote from reality and from the rest of society.

Illogical; unreasonable, inconsiderate.

1. Relating to a system or device that represents data variation by a measurable physical quality.
2. Measuring or representing data by means of one or more physical properties which can express any value along a continuous scale; for example, the position of the hands of a clock is an analog representation of time.
3. An organ or structure that is similar in function to one in another kind of organism, but which is of a dissimilar evolutionary origin; such as, wings of birds and the wings of insects are analogs.
4. A chemical compound that has a similar structure and similar chemical properties to those of another compound, but which differs from it by a single element or group.

The antibiotic amoxicillin, for example, is an analog of penicillin, differing from the latter by the addition of an amino group.

Ancient geological conditions or situations.

For a long time Vesuvius and Pompeii have been an archaeogeological mystery. Bodies found on dense layers of ash indicate that the volcano had been actively pouring pumice and ash into the atmosphere for some time but also that the inhabitants had felt secure enough not to flee.

When the end came; however, it came so quickly that people were caught wherever they were. Hundreds of people in Herculaneum who had time to run and tried to find refuge in doored arched storage caverns were still exposed to such surface temperatures that it is written that a hand raised to protect one's face was burned to the bone, while the other hand, unexposed to the blast, was not.

The application of chemical theories, processes, and experimental procedures to obtaining archaeological data and to solutions of problems in archaeology.

This field includes laboratory analysis of artifacts and materials found in archaeological context.

Establishment of the temporal sequences of human cultures by the application of a variety of dating methods to cultural remains.

Any private, nonprofit organization working to save archaeological sites from destruction.

This is done primarily by purchasing threatened sites and protecting the sites until they can be turned over to responsible agencies; such as, national parks.

Constantly recurring artifacts or group of assemblages that represent or are typical of a specific ancient culture at a particular time and place.

The term describes the maximum grouping of all assemblages that represent the sum of the human activities carried out within a culture.

Material collected and recorded as significant evidence by an archaeologist.

Archaeological data falls into four classes: artifacts, ecofacts, features, and structures.

The use of geological techniques and methods to archaeological work: "Archeological geology is different from geoarchaeology in that the it is a subfield of archaeology focusing on the physical context of deposits."

Sedimentary and architectural units defined by a combination of lithological, pedological, and material cultural criteria.

Any of a variety of means used by archaeologists to find, recover, analyze, preserve, and describe the artifacts and other remains of past human activities.

The technique of finding, specifying, and documenting the locations of very old historical sites on the ground by examining different contrasts in the various environments and geographic configurations: In his class of archaeological reconnaissance, James used a special tool called an auger to make holes in the ground so he could extract samples of soil in order to understand the physical features of what once existed in certain areas.

The surviving physical remains of past human activities, which are sought, recovered, analyzed, preserved, and described by archaeologists in an attempt to reconstruct the past.

The act or process of obtaining artifacts from a site for the purpose of deriving archaeological data.