census

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. An official, usually periodic enumeration of a population, often including the collection of related demographic information.
2. n. In ancient Rome, a count of the citizens and an evaluation of their property for taxation purposes.
3. v. To include in a census; conduct a census of: "Every plant one centimeter in diameter or larger is censused every five years” ( John P. Wiley, Jr.)

Century Dictionary and Cyclopedia

1. n. In Roman antiquity:
2. n. A registered statement of the particulars of a citizen's property for the purposes of taxation.
3. n. An enumeration and register of the Roman citizens in their appropriate classes, with reference to tribe, family, children, slaves, freedmen, etc.
4. n. The drawing up of such a register. See censor
5. n. In modern times, an official enumeration of the inhabitants of a state or country, with details of sex and age, family, occupation, possessions, etc. A census has been taken by the United States once in ten years, beginning with 1790, and many of the States take an intermediate census. The first actual enumeration of the peoples of England and Scotland was made in 1801. Since then a census, including Ireland, has been taken every ten years. In some countries a census is taken at intervals of three, five, or six years.
6. n. In topical geom., a number referring to a geometrical figure and formed by subtracting the sum of the cyclosis and apeiry of the figure from the sum of the choresis and periphraxis. If the figure is composed of parts of different dimensionality, the census should be taken separately for the points, liues, surfaces, and solids, and the final census formed by subtracting the sum of the censuses of the lines and the solids from the sum of the censuses of the points and the surfaces. This use of the word was introduced by J. B. Listing.

Wiktionary

1. n. An official count of members of a population (not necessarily human), usually residents or citizens in a particular region, often done at regular intervals.
2. v. To collect a census.

GNU Webster's 1913

1. n. (Bot. Antiq.) A numbering of the people, and valuation of their estate, for the purpose of imposing taxes, etc.; -- usually made once in five years.
2. n. An official registration of the number of the people, the value of their estates, and other general statistics of a country.

WordNet 3.0

1. v. conduct a census
2. n. a periodic count of the population