delta

Definition

The fourth letter of the modern Greek alphabet Δ, δ.

Etymology

From Ancient Greek δέλτα (délta), borrowed from a Phoenician word for "door", ultimately from Proto-Semitic *dalt-. Doublet of dalet. * (river): from the triangular shape of the majuscule Greek letter delta Δ * (USSF): from the delta wing, symbol of the USSF, a triangular wing, shaped like the majuscule Greek letter delta Δ

Example Sentences

• "Nile Delta"
• "ΔV - "delta vee"(change in velocity, used in rocketry and orbital mechanics)"
• "When you update the file, the system will only save the deltas."