Ad-

1. As a prefix ad- assumes the forms ac-, af-, ag-, al-, an-, ap-, ar-, as-, at-, assimilating the d with the first letter of the word to which ad- is prefixed. It remains unchanged before vowels, and before d, h, j, m, v. Examples: adduce, adhere, adjacent, admit, advent, accord, affect, aggregate, allude, annex, appear, etc. It becomes ac- before qu, as in acquiesce.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.

Acutilobate

1. a. Having acute lobes, as some leaves.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.

Acutifoliate

1. a. Having sharp-pointed leaves.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.

Acuteness

1. n. Violence of a disease, which brings it speedily to a crisis.
2. n. The quality of being acute or pointed; sharpness; as, the acuteness of an angle.
3. n. The faculty of nice discernment or perception; acumen; keenness; sharpness; sensitiveness; — applied to the senses, or the understanding. By acuteness of feeling, we perceive small objects or slight impressions: by acuteness of intellect, we discern nice distinctions.
4. n. Shrillness; high pitch; — said of sounds.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.

Acutely

1. adv. In an acute manner; sharply; keenly; with nice discrimination.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.

Acute-angled

1. a. Having acute angles; as, an acute-angled triangle, a triangle with every one of its angles less than a right angle.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.

Acute

1. v. t. To give an acute sound to; as, he acutes his rising inflection too much.
2. a. Sharp at the end; ending in a sharp point; pointed; — opposed to blunt or obtuse; as, an acute angle; an acute leaf.
3. a. Having nice discernment; perceiving or using minute distinctions; penetrating; clever; shrewd; — opposed to dull or stupid; as, an acute observer; acute remarks, or reasoning.
4. a. Having nice or quick sensibility; susceptible to slight impressions; acting keenly on the senses; sharp; keen; intense; as, a man of acute eyesight, hearing, or feeling; acute pain or pleasure.
5. a. High, or shrill, in respect to some other sound; — opposed to grave or low; as, an acute tone or accent.
6. a. Attended with symptoms of some degree of severity, and coming speedily to a crisis; — opposed to chronic; as, an acute disease.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.

Acutangular

1. a. Acute-angled.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.

Acustumaunce

1. n. See Accustomance.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.

Acupuncture

1. v. t. To treat with acupuncture.
2. n. Pricking with a needle; a needle prick.
3. n. The insertion of needles into the living tissues for remedial purposes.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.