She secreted the letter inside the hollow book before leaving the house.

During the night, the adrenal gland secreted extra cortisol to help the body wake up.

The secreters in the greenhouse released a faint aroma that attracted pollinators.

They met in secret to discuss the plan.

The old archivist secretted the letters in a cedar chest to keep them safe.

The spy was secretting important documents in the false bottom of his suitcase.

Her secretness about the project made her colleagues suspicious.

The secreter in the study was found to secrete blood group antigens into saliva and mucus, influencing transfusion compatibility.

The hormone is secretable by certain glands during periods of stress.

To evaluate its therapeutic potential, the team studied the secretability of the novel peptide under different cellular conditions.