What does additively mean?
Additively is an adverb describing action performed through addition. Its most characteristic technical use refers to a total, effect, or uncertainty that results from adding the separate contributions of two or more components. For example, if the uncertainties in a series of measurements are independent, they may be combined additively by using the mathematical rule for adding variances. The word is also used in a broader formal sense meaning “in addition,” although “additionally” is usually clearer and more natural in contemporary English. Additively is especially common in mathematics, physics, chemistry, engineering, and statistics, where the relationship between separate contributions matters. Unlike “additive,” which can be an adjective or noun, “additively” explicitly describes the manner of combining or calculating. Understanding the word is useful because it distinguishes simple addition from multiplication, ratios, and other relationships between quantities.
adverbIn a manner involving the addition of quantities or the combination of effects. In mathematics and related fields, it indicates that a total is obtained by summing components.
- In a manner involving addition or the summing of separate components.
- In addition; additionally, as a less common formal usage.
"The two filters combine additively, allowing their individual effects to be calculated independently."
"The uncertainty contributions from the two measurements combine additively."
"Additionally, the procedure requires no specialized equipment."
When effects combine additively, the total is simply their sum.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does additively come from?
Additively was formed from the adjective additive by adding the adverbial suffix -ly. The base adjective comes from Latin additivus, meaning “that which is added,” which was derived from addere, “to add.” Latin addere combines ad-, meaning “to” or “toward,” with dare, “to give” or “put,” reflecting the idea of adding one thing to another. English relatives include additive, addition, additional, and add.
How additively is actually used
The principal usage is technical, especially in mathematics, physics, chemistry, and signal processing. The sense meaning “in addition” is formal and less common than “additionally.”
Easily confused with additively
Additively describes the manner in which things combine by addition, whereas additionally means in addition or besides.
Additive is an adjective or noun, while additively is the adverb indicating the manner of combining or calculating.