| amitosis |
direct cell division in which the nucleus divides without the formation of chromosomes. (Cf. mitosis.) |
| ammonification |
the formation of ammonia by bacterial action on nitrogenous organic matter, as in soil. [1/2 definitions] |
| angiogenesis |
the formation of new blood vessels. |
| anticline |
a formation of rock layers characterized by two downward slopes going in opposite directions from a central crest. (Cf. syncline.) |
| armada |
any group of armed vehicles, airplanes, or the like, or anything resembling such a group in formation and behavior. [1/2 definitions] |
| at ease |
in the military, a standing position in which soldiers may relax but not leave formation or talk. [1/2 definitions] |
| bonding |
the formation of close personal relationships, as between family members or friends. |
| bowl1 |
a rounded valley or other geographical depression or formation. [1/6 definitions] |
| Canada Day |
a Canadian legal holiday on July 1, celebrating the anniversary of the formation of the Dominion in 1867; formerly Dominion Day. |
| casque |
in zoology, a formation or protuberance resembling a helmet. [1/2 definitions] |
| Church Fathers |
the ecclesiastical authorities of the early Christian church, whose writings had an authoritative influence on the formation of Christian doctrine. |
| column |
a formation of moving soldiers. [1/5 definitions] |
| conceptual |
of or pertaining to concepts or their formation. |
| crystallography |
the science of the formation, composition, and characteristics of crystals. |
| cytology |
processes or phenomena involving the formation of cells or structures internal to cells. [1/2 definitions] |
| decompression sickness |
a painful and sometimes fatal condition caused by the formation of nitrogen bubbles in the blood, resulting from returning to atmospheric pressure too quickly from deep water or a compression chamber; aeroembolism; bends. |
| DNA |
abbreviation of deoxyribonucleic acid; any of several acids occurring mainly in cellular nuclei and involved in the transmission of hereditary traits and the formation of proteins.. |
| dome |
something that has a shape similar to an architectural dome, such as a rounded rock formation or the sky. [1/7 definitions] |
| echelon |
a formation of troops, planes, or ships in a stairstep pattern behind and to the right or left of the leading unit or craft. [1/3 definitions] |
| embryology |
the branch of science that concerns the formation and development of embryos. [2 definitions] |
| formative |
relating to formation, development, or growth. [1/2 definitions] |