'Age of consent' definitions:

Definition of 'age of consent'

noun

The minimum age for marrying without parental consent or the minimum age for consensual sexual relations; intercourse at an earlier age can result in a charge of assault or statutory rape; the age differs in different states of the Union

Definition of 'Age of consent'

From: GCIDE

Consent \Con*sent"\, n. [Cf. OF. consent.]
1. Agreement in opinion or sentiment; the being of one mind; accord. [1913 Webster]
All with one consent began to make excuse. --Luke xiv. 18. [1913 Webster]
They fell together all, as by consent. --Shak. [1913 Webster]
2. Correspondence in parts, qualities, or operations; agreement; harmony; coherence. [1913 Webster]
The melodious consent of the birds. --Holland. [1913 Webster]
Such is the world's great harmony that springs From union, order, full consent of things. --Pope. [1913 Webster]
3. Voluntary accordance with, or concurrence in, what is done or proposed by another; acquiescence; compliance; approval; permission. [1913 Webster]
Thou wert possessed of David's throne By free consent of all. --Milton. [1913 Webster]
4. (Law) Capable, deliberate, and voluntary assent or agreement to, or concurrence in, some act or purpose, implying physical and mental power and free action. [1913 Webster]
5. (Physiol.) Sympathy. See Sympathy, 4.
Syn: Assent; acquiescence; concurrence; agreement; approval; permission. See Assent. [1913 Webster]
Age of consent (Law), an age, fixed by statute and varying in different jurisdictions, at which one is competent to give consent. Sexual intercourse with a female child under the age of consent is punishable as rape. [1913 Webster]