| MOUNTAINOUS | • mountainous adj. Having many mountains; characterized by mountains; of the nature of a mountain; rough (terrain); rocky. • mountainous adj. Resembling a mountain, especially in size; huge; towering. • mountainous adj. (Figurative, of a problem or task) Very difficult. |
| NEURULATION | • neurulation n. (Embryology) The process by which the beginnings of the vertebrate nervous system is formed in embryos. • NEURULATION n. the formation of a neurula. |
| NONCULTURAL | • noncultural adj. Not cultural. • NONCULTURAL adj. not cultural. |
| NOTUNGULATE | • notungulate n. Alternative form of notoungulate. • NOTUNGULATE n. any one of an extinct group of herbivorous, hoofed mammals, also NOTOUNGULATE. |
| NUMMULATION | • nummulation n. (Physiology, rare) The arrangement of the red blood corpuscles in rouleaux, like piles of coins, as… • NUMMULATION n. the arrangement of blood corpuscles in rouleaus. |
| NUNCUPATION | • nuncupation n. (Obsolete) The act of nuncupating. • NUNCUPATION n. the act of uttering a vow. |
| NUNCUPATORY | • nuncupatory adj. Nuncupative; oral rather than written. • NUNCUPATORY adj. (obsolete) of a will or testament, made before oral witnesses only, also NUNCUPATIVE. |
| OUTLAUNCING | • OUTLAUNCE v. (Spenser) to launch forth, also OUTLAUNCH. |
| OUTVAUNTING | • outvaunting v. Present participle of outvaunt. • OUTVAUNT v. to surpass in vaunting. |
| PUNCTUATION | • punctuation n. A set of symbols and marks which are used to clarify meaning in text by separating strings of words… • punctuation n. An act of punctuating. • PUNCTUATION n. the act of punctuating. |
| TURNAROUNDS | • turnarounds n. Plural of turnaround. • turn-arounds n. Plural of turn-around. • turn␣arounds n. Plural of turn around. |
| UNACCOUNTED | • unaccounted adj. Not accounted. • UNACCOUNTED adj. not accounted. |
| UNCOUNTABLE | • uncountable adj. So many as to be incapable of being counted. • uncountable adj. (Mathematics) Incapable of being put into one-to-one correspondence with the natural numbers or any subset thereof. • uncountable adj. (Grammar, of a noun) That cannot be used freely with numbers or the indefinite article, and therefore… |
| UNDULATIONS | • undulations n. Plural of undulation. • UNDULATION n. a rising and falling in waves. |
| UNFORTUNATE | • unfortunate adj. Not favored by fortune. • unfortunate adj. Marked or accompanied by or resulting in misfortune. • unfortunate n. An unlucky person; one who has fallen into bad circumstances. |