topology

branch of mathematics dealing with those properties of a geometrical object (of arbitrary dimensionality) that are unchanged by continuous deformations (such as stretching, bending, etc.,…

union (labor)

Workers' organization for improving working conditions, safety standards, and benefits. // Rom forms a union in the DS9 episode "Bar Association".

lane

lengthwise division of roadway intended for a single line of vehicles; or, a similar division of a racetrack, swimming pool, or bowling alley to keep…

Frost

A thin white layer of ice forms on the ground and other surfaces, especially at night, when the temperature drops below 0° Celsius.

morpheme

the smallest unit of language that contains a meaning and cannot be divided into smaller parts. In Klingon these are largely either roots or affixes.

flavors of quark

No, not that Quark. (up, down, charm, strange, top/truth, bottom/beauty)

etching

Technique for cutting into a surface with an acid or other corrosive substance in order to make a pattern. Best known for creating printing plates,…

zirconium

The 40th element of the periodic table. A transition metal. Used especially for its hard, durable compounds, such as zirconium dioxide, zircon, and cubic zirconia,…

yttrium

The 39th element of the periodic table. A transition metal that behaves similarly to, and is almost always found with, lanthanide metals. It is used…

strontium

The 38th element of the periodic table. A soft alkaline earth metal similar to calcium. Radioactive strontium is particularly dangerous because it accumulates in bones.