penta-, pent-, pente-, pento-

A green-black solid that absorbs water from the air and reacts with both water and air; used in chlorination, as a fire retardant, and for various other purposes.

An organism having five spines: In Jane's book, she wasn't sure if the pentacanth had its sharp thorns on its tail or on its toes.

Descriptive of an organism having five spines: The fantasy creature pictured in Susan's book was a pentacanthous with five long and sharply pointed needle-like thorns on its forehead, and looking extremely dangerous!

1. An ancient instrument of music with five strings.
2. An order or system of five sounds.

1. A five-pointed star, often held to have magical or mystical significance, formed by five straight lines connecting the vertices of a pentagon and enclosing another pentagon in the completed figure.
2. Etymology: from medieval Latin pentaculum, literally "little five" from Greek penta-, "five".

Having five fingers on each hand or five toes on each foot.

A reference to having five fingers or toes on each hand or foot.

Relating to the existence of five fingers or toes on each hand or foot.

The condition of having five digits on each hand and foot.

Having five digits (fingers or toes), or five processes resembling fingers; such as, a star-fish.

Having five digits on each limb.

All land vertebrates are said to have descended from an ancestor with a pentadactyl limb, although many species have lost or transformed some or all of their digits.