Trigonometry Terminology

noun a light brown color of skin obtained by exposure to the sun

adjective of a light brown color

• She achieved a golden tan after spending a week at the beach.
• I need to work on my tan before summer starts.
• I'm going to lay out and catch some rays to get a sick tan.
• His lies were like a fake tan, trying to cover up the truth but ultimately failing.

noun a completely different line of thought or action

• In mathematics, a tangent is a straight line that touches a curve at a single point without crossing it.
• I went off on a tangent during the meeting and started talking about my vacation plans.
• I was on a tangent about my favorite TV show and couldn't stop talking about it.
• The conversation took a tangent when we started discussing politics instead of the original topic.

noun a curve that can be described by a sine or cosine function, typically having a regularly repeating pattern

• The sinusoid function can be represented as y = A sin(Bx + C) + D.
• The graph of a sinusoid looks like a wave.
• I can't wrap my head around this whole sinusoid thing.
• Her voice had a sinusoidal quality, rising and falling in a smooth, rhythmic pattern.