| APSIDIOLE | • apsidiole n. Alternative form of apsidole. • APSIDIOLE n. a subsidiary apse, a rounded extension at the end of a building, esp. at the east end of a church. |
| DIABOLISE | • diabolise v. Alternative form of diabolize. • DIABOLISE v. to convert into a devil, render diabolical, also DIABOLIZE. |
| DIABOLISM | • diabolism n. (Uncountable) Worship of the devil; Satanism. • diabolism n. (Countable) Character, action, utterances, creative works, behavior or principles appropriate to the devil. • diabolism n. (Uncountable) Possession by Satan or other demonic forces. |
| DIABOLIST | • diabolist n. A devil-worshipper. • DIABOLIST n. one who practises diabolism. |
| DIALOGISE | • dialogise v. Alternative form of dialogize. • DIALOGISE v. to discourse in dialogue, also DIALOGIZE. |
| DIALOGISM | • dialogism n. An imaginary speech or discussion between two or more. • DIALOGISM n. deduction with one premise and a disjunctive conclusion. |
| DIALOGIST | • dialogist n. A writer of dialogs. • dialogist n. A speaker within a dialogue. • DIALOGIST n. a speaker in a dialogue. |
| DIASTOLIC | • diastolic adj. Pertaining to a diastole. • diastolic n. (Medicine, colloquial) Short for diastolic blood pressure. • DIASTOLIC adj. of or pertaining to diastole, the rhythmical expansion or dilatation of the heart and arteries. |
| DIGLOSSIA | • diglossia n. (Linguistics, sociology) The coexistence in a given population of two closely related native languages… • diglossia n. (Pathology) The presence of a cleft or doubled tongue. • DIGLOSSIA n. the coexistence of a prestige language and a lower language. |
| DILATIONS | • dilations n. Plural of dilation. • DILATION n. the act of dilating. |
| DIPLOPIAS | • diplopias n. Plural of diplopia. • DIPLOPIA n. a disorder of vision in which two images of a single object are seen. |
| DISCOIDAL | • discoidal adj. Having the flat, circular shape of a disc or a quoit. • DISCOIDAL adj. disk-shaped. |
| DISSOCIAL | • dissocial adj. Unfriendly to society; selfish. • DISSOCIAL adj. (archaic) not social. |
| EPISODIAL | • episodial adj. Episodic. • EPISODIAL adj. pertaining to or contained in an episode, also EPISODAL, EPISODIC, EPISODICAL. |
| IDIOBLAST | • idioblast n. (Botany) An isolated specialised cell found in the midst of an otherwise homogeneous group of cells in plant tissue. • IDIOBLAST n. a plant cell that differs from neighbouring cells in the same tissue. |
| IDIOPLASM | • idioplasm n. Alternative form of idioplasma. • IDIOPLASM n. the part of the protoplasm bearing hereditary characteristics. |
| SIGMOIDAL | • sigmoidal adj. Sigmoid; S-shaped. • sigmoidal adj. (Statistics) Characterized by a sigmoid curve or function. • sigmoidal n. A sigmoidal function or curve. |
| SPADILLIO | • spadillio n. (Card games). • SPADILLIO n. (obsolete) the ace of spades in the game of ombre, also SPADILLE, SPADILLO. |
| SPORIDIAL | • sporidial adj. Relating to a sporidium. • SPORIDIAL adj. of or like a sporidium, a secondary spore, or a filament produced from a spore, in certain kinds of minute fungi. |
| VISCOIDAL | • viscoidal adj. Somewhat viscous. • VISCOIDAL adj. somewhat viscid, also VISCOID. |