Final answer:
The term "warm-blooded" is equivalent to 'endothermic', referring to animals that maintain a constant internal body temperature despite environmental changes.
Step-by-step explanation:
The equivalent technical term for "warm-blooded" is endothermic. Animals classified as endotherms are able to maintain a constant body temperature regardless of the environmental temperature.
This is in contrast to ectotherms, which rely on external heat sources to regulate their body temperature, and poikilotherms, which have constantly varying internal temperatures. Endothermy allows these animals to keep a stable internal temperature that supports high levels of metabolic activity even in cooler environments, unlike ectothermic animals whose metabolic rate is influenced primarily by external temperatures.