| BIOAERATION | • bioaeration n. A form of the activated sludge process in which air is blown through the raw sewage. • BIOAERATION n. the oxidative treatment of raw sewage by aeration. |
| BOTHERATION | • botheration interj. A mild expression of annoyance or exasperation: bother! • botheration n. (Uncountable) The state of being bothered; annoyance, vexation. • botheration n. (Countable) An act of bothering or annoying. |
| CANCERATION | • canceration n. The act or state of becoming cancerous or growing into a cancer. • CANCERATION n. the act of cancerating. |
| COOPERATION | • cooperation n. (Usually uncountable) The act of cooperating. • cooperation n. Active help from a person, organization, etc., such as an orderly sharing of space or resources. • cooperation n. Association for mutual benefit, such as for purposes of production or purchase. |
| DESPERATION | • desperation n. The act of despairing or becoming desperate; a giving up of hope. • desperation n. A state of despair, or utter hopelessness; abandonment of hope. • desperation n. Reckless fury. |
| DEUTERATION | • deuteration n. (Chemistry) deuteriation. • DEUTERATION n. the act of deuterating. |
| ENUMERATION | • enumeration n. The act of enumerating, making separate mention, or recounting. • enumeration n. A detailed account, in which each thing is specially noticed. • enumeration n. A recapitulation, in the peroration, of the heads of an argument. |
| EXONERATION | • exoneration n. An act of disburdening, discharging, or freeing morally from a charge or imputation. • exoneration n. (Uncountable) The state of being disburdened or freed from a charge. • EXONERATION n. the act of exonerating. |
| GLOMERATION | • glomeration n. The act of forming or gathering into a ball or round mass; conglomeration. • glomeration n. That which is formed into a ball. • GLOMERATION n. the act of gathering into a ball. |
| ITINERATION | • itineration n. (Formal) A travelling around. • ITINERATION n. the act of itinerating. |
| MUTTERATION | • mutteration n. (Nonce word) An act of muttering or complaining. • MUTTERATION n. (Richardson) complaining. |
| PIGNERATION | • PIGNERATION n. the act or process of pledging or pawning, also PIGNORATION. |
| PONDERATION | • ponderation n. Heaviness. • ponderation n. Mental weighing; deliberation; pondering. • ponderation n. Physical weighing or balancing. |
| PULVERATION | • PULVERATION n. pulverization. |
| REITERATION | • reiteration n. The act of reiterating. • reiteration n. Something reiterated or restated. • REITERATION n. the act of reiterating. |
| REOPERATION | • reoperation n. (Surgery) A second or subsequent operation. • REOPERATION n. operation again. |
| VERBERATION | • verberation n. The act of verberating; a beating or striking. • verberation n. The impulse of a body which causes sound. • VERBERATION n. (archaic) the act of verberating, beating. |
| VULNERATION | • vulneration n. (Obsolete) The act of wounding. • vulneration n. (Obsolete) The state of being wounded. • VULNERATION n. (obsolete) a wound. |