Definition

A recurring period when female mammals are sexually excited and ready to mate, usually occurring before ovulation.

Example

The female dog is in estrus and will be receptive to male dogs during this time.

Conversation

Did you know that some animals experience estrus cycles?

Yeah, I've heard about that; it's interesting how it works in nature.

Exactly! It's the time when females are most ready to mate.

Right, and it’s fascinating how that affects their behavior.

Synonyms & Antonyms

Root Explanation

Estrus comes from the Latin word "estrus" (meaning a state of sexual excitement or heat). The term refers specifically to the period of sexual receptivity in female mammals, indicating a time when they are ready to mate.

Memory Tip

Think of the Latin word for a state of sexual excitement — that's why estrus refers to the time when female mammals are ready to mate.

Visually Confused Words