1(of an organism, e.g. a barnacle) fixed in one place; immobile.‘parrotfish inadvertently graze upon sessile invertebrates when cropping algae’‘overall body shape is consistent with a sessile habit’
- ‘Because anemones are sessile animals, staying put most of their lives, it is important for them to maintain dominance over their territory in competition for food and space.’
- ‘Alternatively, competent larvae of many sessile invertebrate species do not progress toward metamorphosis if stimulatory cues are absent.’
- ‘Epizoic barnacles are sessile, marine crustaceans and constitute a model system featuring the above conditions.’
- ‘It is also suggested that the reef may be a source of pelagic larvae of sessile organisms that may settle on mangrove roots for greater diversity.’
- ‘Most radially symmetric animals are sessile, however, echinoderms are able to move.’
- 1.1Zoology Botany (of a plant or animal structure) attached directly by its base without a stalk or peduncle.‘sporangia may be stalked or sessile’
- ‘The genus is about equally divided into two subgenera, those with pedicellate flowers (Trillium L.) and those with sessile flowers (Phyllantherum Raf.).’
- ‘The tumors were described as pedunculated or sessile polypoid nodules or as cauliflower-like masses projecting into the lumen of the gallbladder.’
- ‘These two phenomena are especially critical for sessile higher plants.’
- ‘It frequently occurs in the lower uterine segment and may be either sessile or pedunculated.’
- ‘It continues to grow with a dome shape, but it can be sessile or pedunculated.’
Early 18th century: from Latin sessilis, from sess- ‘seated’, from the verb sedere.
We take a look at several popular, though confusing, punctuation marks.