| diameter |
in geometry, a straight line passing through the center of a circle or sphere and having its ends on the circumference or surface. [3 definitions] |
| diametrical |
entirely opposite; completely different. |
| diamine |
any of various chemical compounds containing two amino groups. |
| diamond |
a clear, very hard crystalline form of carbon, used in jewelry and in abrasives and cutting tools. [7 definitions] |
| diamondback |
any of several rattlesnakes or turtles having diamond-shaped markings. |
| diamond wedding |
a sixtieth or seventy-fifth wedding anniversary. |
| Diana |
in Roman mythology, a goddess associated with the moon and hunting, and a protector of women; Artemis. |
| dianthus |
any of various plants related to pinks, such as the carnation or sweet william. |
| diapason |
a rich, swelling passage of harmonious music. [3 definitions] |
| diapause |
a physiological state of dormancy occurring between periods of activity. |
| diaper |
a baby's undergarment of absorbent cloth or paper folded between the legs and fastened at the waist. [2 definitions] |
| diaphanous |
of fabric or the like, almost transparent; sheer; filmy; delicate. [2 definitions] |
| diaphoresis |
perspiration, esp. when heavy or medically caused. |
| diaphragm |
in anatomy, a wall of muscle or membranous material separating two spaces, esp. the muscle wall separating the thorax and abdomen in mammals. [5 definitions] |
| diaphragmatic |
of, pertaining to, or like a diaphragm. |
| diaphysis |
the shaft or middle part of a long bone. |
| diarrhea |
an intestinal condition characterized by frequent and watery bowel movements. |
| diary |
a daily record, esp. of a person's experiences, reflections, and private thoughts. [3 definitions] |
| Diaspora |
the scattering of Jews among the Gentiles after the Babylonian exile. [3 definitions] |
| diastase |
an enzyme that changes starch into sugar, found in the seed of grains, malt, and the like; amylase. |
| diastole |
in physiology, the normal rhythmic expansion of the heart chambers, during which the chambers fill with blood. (Cf. systole.) |