| semiamplexicaul | <botany> Partially amplexicaul; embracing the stem half round, as a leaf. Source: Websters Dictionary (01 Mar 1998) |
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| semiangle | <geometry> The half of a given, or measuring, angle. Source: Websters Dictionary (01 Mar 1998) |
| semiautonomous | Of systems or processes that are not wholly independent of other systems or processes. (18 Nov 1997) |
| semiaxis | <geometry> One half of the axis of an llipse or other figure. Source: Websters Dictionary (01 Mar 1998) |
| semibull | A bull issued by a pope in the period between his election and coronation. Source: Websters Dictionary (01 Mar 1998) |
| semicalcareous | Half or partially calcareous; as, a semicalcareous plant. Source: Websters Dictionary (01 Mar 1998) |
| semichorus | A half chorus; a passage to be sung by a selected portion of the voices, as the female voices only, in contrast with the full choir. Source: Websters Dictionary (01 Mar 1998) |
| semicircular | 1. Having the form of half of a circle. 2. <anatomy> Semicircular canals, certain canals of the inner ear. Source: Websters Dictionary (01 Mar 1998) |
| semicircular canal | <anatomy> Three membranous semicircular tubes contained in the bony labyrinth of the inner ear. They are concerned with equilibrium and the interpretation of the bodys position in space. (27 Sep 1997) |
| semicirque | <ecology> A semicircular hollow or opening among trees or hills. Source: Websters Dictionary (01 Mar 1998) |
| semiconservative replication | <molecular biology> The system of replication of DNA found in all cells in which each daughter cell receives one old strand of DNA and one strand newly synthesised at the preceding S phase. The existence of semiconservative replication was demonstrated by the Meselson Stahl experiment and implies the two or multi strandedness of DNA. (18 Nov 1997) |
| semicrystalline | <chemical> Half crystalline; said of certain cruptive rocks composed partly of crystalline, partly of amorphous matter. Source: Websters Dictionary (01 Mar 1998) |
| semicubical | <mathematics> Of or pertaining to the square root of the cube of a quantity. Semicubical parabola, a curve in which the ordinates are proportional to the square roots of the cubes of the abscissas. Source: Websters Dictionary (01 Mar 1998) |
| semidecussation | Incomplete decussation such as occurs in the human optic chiasm. (05 Mar 2000) |
| semidiameter | <mathematics> Half of a diameter; a right line, or the length of a right line, drawn from the center of a circle, a sphere, or other curved figure, to its circumference or periphery; a radius. Source: Websters Dictionary (01 Mar 1998) |