| system of measurement |
a set of units used used to quantify certain properties, such as length, volume, and mass, and a set of rules relating the units to one another. |
| systems analysis |
the quantitative study and analysis of an operation or activity to decide how its purposes and objectives can best be achieved. [2 definitions] |
| systems engineering |
a branch of engineering that makes use of computer science and systems analysis to put together efficient operating procedures for certain networks or complexes. |
| system unit |
the main constituent of a computer, which houses the central processing unit and other essential components. |
| systole |
the rhythmic contraction made by the heart and its ventricles that pushes blood from the chambers. (Cf. diastole.) |
| syzygy |
in astronomy, the alignment, either in conjunction or opposition, of three celestial bodies within the same gravitational system, esp. the sun, moon, and earth. [3 definitions] |
| sz. |
abbreviation of "size." |
| T |
abbreviation of "true," in agreement with fact. |
| t |
the twentieth letter of the English alphabet. [3 definitions] |
| TA |
abbreviation of "teaching assistant." |
| Ta |
symbol of the chemical element tantalum. |
| tab |
a small, flat projection, such as a loop, strap, or flap, used for pulling, hanging, or opening, or as a means of identifying something. [7 definitions] |
| tabard |
formerly, a capelike jacket worn outdoors by peasants. [3 definitions] |
| tabby |
a domestic cat with gray striped fur. [3 definitions] |
| tabernacle |
a place of worship, esp. a spacious one. [3 definitions] |
| tabes dorsalis |
a disease of the nervous system, usu. caused by syphilis and characterized by pain and an increasing loss of voluntary motor control and organ distress. |
| tab key |
the tabulator on a typewriter. |
| tabla |
a pair of different-sized, small drums that are joined together, used esp. in the music of India. The pitch of these drums can be varied. |
| table |
an article of furniture, usu. with a flat, horizontal top and supported by one or more vertical legs. [11 definitions] |
| tableau |
an artistically arranged group of actors who remain motionless for a moment on stage, as at the end of a scene. [2 definitions] |
| tableau vivant |
living picture (French); a scene, statue, or picture depicted by costumed and posed actors who remain silent and motionless. |