| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| pentabasic | adjective | Capable of uniting with five molecules of a monacid base; having five acid hydrogen atoms capable of substitution by a basic radical; — said of certain acids. |
| pentachord | noun | An ancient instrument of music with five strings., An order or system of five sounds. |
| pentacrons | plural | of Pentacron |
| pentagonal | adjective | Having five corners or angles. |
| pentagynia | noun pl. | A Linnaean order of plants, having five styles or pistils. |
| pentameran | noun | One of the Pentamera. |
| pentamerus | noun | A genus of extinct Paleozoic brachiopods, often very abundant in the Upper Silurian. |
| pentameter | noun | A verse of five feet., Having five metrical feet. |
| pentandria | noun pl. | A Linnaean class of plants having five separate stamens. |
| pentaptote | noun | A noun having five cases. |
| pentaptych | noun | A picture, or combination of pictures, consisting of a centerpiece and double folding doors or wings, as for an altarpiece. |
| pentaspast | noun | A purchase with five pulleys. |
| pentastich | noun | A composition consisting of five verses. |
| pentastyle | adjective | Having five columns in front; — said of a temple or portico in classical architecture., A portico having five columns. |
| pentateuch | noun | The first five books of the Old Testament, collectively; — called also the Law of Moses, Book of the Law of Moses, etc. |
| pentathlon | noun | A fivefold athletic performance peculiar to the great national games of the Greeks, including leaping, foot racing, wrestling, throwing the discus, and throwing the spear. |
| pentatomic | adjective | Having five atoms in the molecule., Having five hydrogen atoms capable of substitution. |