to split open along definite structural lines, as the seedpods of legumes, lilies, etc. do
Origin of dehisceClassical Latin dehiscere ; from de-, off + hiscere, to gape, inchoative of hiare: see hiatus
intransitive verbde·hisced, de·hisc·ing, de·hisc·es
- Botany To open at definite places, discharging seeds, pollen, or other contents, as the ripe capsules or pods of some plants.
- Medicine To rupture or break open, as a surgical wound.
Origin of dehisceLatin deh&imacron;scere : d&emacron;-, de- + h&imacron;scere, to split, inchoative of hiare, to be open.
(third-person singular simple present dehisces, present participle dehiscing, simple past and past participle dehisced)
- (intransitive, botany) To burst or split open at definite places, discharging seeds, or pollen, or other contents, as the ripe pods of some plants.
- Anthers dehisce when the flower opens.
- (intransitive, medicine) To rupture or break open, as a surgical wound.
- A surgical wound may partially or completely dehisce after surgery, depending upon whether some or all of the layers of tissue come open.