DIMETHYL
Di*meth"yl, n. Etym: [Pref. di- + methyl.] (Chem.)

Defn: Ethane; — sometimes so called because regarded as consisting of two methyl radicals. See Ethane.

DIMETRIC
Di*met"ric, a. Etym: [See Dimeter, a.] (Crystallog.)

Defn: Same as Tetragonal. Dana.

DIMICATION
Dim`i*ca"tion, n. Etym: [L. dimicatio, fr. dimicare to fight.]

Defn: A fight; contest. [Obs.] Bp. Hall.

DIMIDIATE Di*mid"i*ate, a. Etym: [L. dimidiatus, p. p. of dimidiare to halve, fr. dimidius half. See Demi-.]

1. Divided into two equal parts; reduced to half in shape or form.

2. (Biol.) (a) Consisting of only one half of what the normal condition requires; having the appearance of lacking one half; as, a dimidiate leaf, which has only one side developed. (b) Having the organs of one side, or half, different in function from the corresponding organs on the other side; as, dimidiate hermaphroditism.

DIMIDIATE
Di*mid"i*ate, v. t. [imp. & p. p. Dimidiated; p. pr. & vb. n.
Dimidiating.]