crown-heel length

length (l ) (length) the longest dimension of an object, or of the measurement between the two ends.

---

crown-heel length  (CHL) the distance from the crown of the head to the heel in embryos, fetuses, and infants; the equivalent of standing height in older persons.

crown-rump length  (CRL) the distance from the crown of the head to the breech in embryos, fetuses, and infants; the equivalent of sitting height in older persons.

focal length  the distance between a lens and an object from which all rays of light are brought to a focus.

---

crown-heel length

n.

The length of an embryo or fetus measured from the skull vertex to the heel.

---

crown-heel length

Etymology: L, corona + AS, hela, lengthu

the length of an embryo, fetus, or newborn as measured from the crown of the head to the heel. It is compared to the standing height of an older individual.

---

length

an expression of the longest dimension of an object, or of the measurement between its two ends.

---

crown-heel length

the distance from the crown of the head to the heel in embryos, fetuses and neonates.

crown-rump length

the distance from the crown of the head to the point of attachment of the tail.