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(trend) [Old English trendan, to roll, revolve]
The inclination to proceed in a certain direction or at a certain rate; used to describe the prognosis or course of a symptom, disease, or methods of disease management.

pernicious trend

In psychology, an abnormal departure from conventional ideas and social interests.

secular trend

A long-term trend that develops or progresses over many years. The tendency for girls to begin menstruating at younger and younger ages during the twentieth century is an example.


a generally consistent movement in the same direction over a long period in a time series.
References in periodicals archive ?
Our annual review, Ten Key Trends in Food, Nutrition & Health, is one of the most sought-after publications in the food industry.
The past 12 months have seen major developments both in science and in strategy, and the following trends are now here to stay:
Ten Key Trends in Functional Foods 2007 is a practical tool, setting out the effect these key trends will have on company strategies.
Feature: "Virtual Smackdown," Motor Trend, Silver Medal, Frank Markus, Technical Director
Internationally recognized as the world's number one automotive authority, Motor Trend is one of the leading brands in automotive publishing.
The network plans to air select theatrical movies as part of "Motor Trend Drive-In" and will acquire a library of syndicated automotive television programming.
Motor Trend TV will not only deliver quality content, but also supports new interactions with a group of consumers that spent $947 billion on auto-related purchases in 2004.
Multicasting Motor Trend TV creates new opportunities for local broadcasters to tap an industry that spent over $10 billion in advertising on network and cable TV.
The complete report on the 2006 MOTOR TREND Car of the Year testing and selection will be published in the January 2006 issue of MOTOR TREND (on newsstands December 6, 2005) and high-resolution images of the winner are available upon request and at www.
Table 6: Breakdown of Technology Trends sample by company revenue
Figure 1: Breakdown of Technology Trends sample by geography
Figure 2: Breakdown of Technology Trends sample by vertical market