### noun

informalTrigonometry.

*‘With all the inverse trig. functions you must carefully select the answer or answers that are appropriate to the problem you are solving.’**‘The mathematical functions include the standards found on a good pocket calculator, such as exponents, logs, trig, matrices, as well as sigmoid, gamma and log gamma functions.’**‘We spent a few minutes yesterday using trig to work out how far away the most distant vapour trail was.’**‘Sine equations are very useful, and chips these days are very fast at trig so you don't have to worry about optimizing, for example, by building a table of already-calculated sine values.’**‘Are you going to tell me now that they're geniuses and I can learn trig faster by listening to them?’**‘Physics flew by in a swirl of directional forces and a few frantic minutes of finishing up my trig.’**‘Had I used trig on the right-angled triangle to find half of OCD, like they did in the textbook explanation, I'd have come up with the correct answer.’**‘Now, I have to confess that I'm so pitiful at math that in high school I could barely crack a passing grade in trig.’**‘She might envy you for how you decorate your room or dodge a soccer ball - things that come easier for you than trig.’**‘You can try using the trig. formulas for half-angle and double-angles.’**‘Another detail not mentioned is that its basic laws all appear to be recast forms of standard trig formulae.’*

**Origin**

Late 19th century abbreviation.

### adjective

archaic USNeat and smart in appearance.

*‘two trig little boys, each in a gray flannel suit’*

**stylish**, smart, elegant, chic, crisp, dapper, spruce, trim, debonair, well dressed, well groomed, well turned out, smartly dressed

### transitive verbtrigs, trigging, trigged

[with object]archaic USMake neat and smart in appearance.

*‘he has rigged her and trigged her with paint and spar’*

**groom**, tidy, arrange, brush, comb, smooth, smarten, smarten up, spruce up, freshen, freshen up, beautify, pretty, preen, primp, prink, prink up

**Origin**

Middle English (in the sense ‘faithful, trusty’): from Old Norse tryggr; related to true. The current verb sense dates from the late 17th century.

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