Verb

(indicat)

To point out; to discover; to direct to a knowledge of; to show; to make known.

:

*

*:With just the turn of a shoulder she indicated the water front, where, at the end of the dock on which they stood, lay the good ship, Mount Vernon , river packet, the black smoke already pouring from her stacks.

*{{quote-book, year=1963, author=(Margery Allingham), title=(The China Governess)

, chapter=20 citation , passage=The story struck the depressingly familiar note with which true stories ring in the tried ears of experienced policemen.

*{{quote-magazine, year=2013, month=May-June, author= Katrina G. Claw

, title= Rapid Evolution in Eggs and Sperm , volume=101, issue=3, magazine=(American Scientist) , passage=Many genes with reproductive roles also have antibacterial and immune functions, which indicate that the threat of microbial attack on the sperm or egg may be a major influence on rapid evolution during reproduction.}}

To show or manifest by symptoms; to point to as the proper remedies.

:

To signal in a vehicle the desire to turn right or left.

To investigate the condition or power of, as of steam engine, by means of an indicator.

*1903', "How to '''indicate an engine" in ''The Star Improved Steam Engine Indicator , p.64:

*:To a person who is familiar with the use of an indicator, whether it be of one make or another, it is needless to give instructions as to how an engine should be indicated ,.

*1905 , Power , Vol.25, p.448:

*:I found it fully as easy to indicate an engine at a speed of 320 to 340 revolutions as at 80.

*1905 , Central Station , Vol.5, p.76:

*:An indicator will give the working of these valves at all times and soon return its cost in higher engine efficiency. The day has passed when it was only the expert who could indicate an engine or afford to own an indicator.

Verb

(defin)

To determine with precision; to mark out with distinctness; to ascertain or exhibit clearly.

* Sir (Isaac Newton)

Ringsvery distinct and well defined .

*{{quote-magazine, year=2013, month=July-August, author= Lee S. Langston

, title= The Adaptable Gas Turbine , passage=Turbines have been around for a long time—windmills and water wheels are early examples. The name comes from the Latin turbo'', meaning ''vortex , and thus the defining property of a turbine is that a fluid or gas turns the blades of a rotor, which is attached to a shaft that can perform useful work.}}

(obsolete) To settle, decide (an argument etc.).

* 1596 , (Edmund Spenser), (The Faerie Queene) , IV.3:

These warlike Champions, all in armour shine, / Assembled were in field the chalenge to define .

To express the essential nature of something.

*{{quote-magazine, year=2013, month=May-June, author=

, volume=101, issue=3, page=178, magazine=(American Scientist) , title= Crinkly Curves , passage=Cantor defined a one-to-one correspondence between the points of the square and the points of the line segment. Every point in the square was associated with a single point in the segment; every point in the segment was matched with a unique point in the square.}}

To state the meaning of a word, phrase, sign, or symbol.

To describe, explain, or make definite and clear.

To demark sharply the outlines or limits of an area or concept.

*{{quote-magazine, year=2012, month=March-April, author=(Jan Sapp)

, volume=100, issue=2, page=164, magazine=(American Scientist) , title= Race Finished , passage=Few concepts are as emotionally charged as that of race. The word conjures up a mixture of associations—culture, ethnicity, genetics, subjugation, exclusion and persecution. But is the tragic history of efforts to define groups of people by race really a matter of the misuse of science, the abuse of a valid biological concept?}}

(mathematics) To establish the referent of a term or notation.