fleshy fruit: citrus fruit
Fruit composed of several segments, each one enclosing seeds that are in direct contact with the pulp.
usual terms 
technical terms 
section of an orange 
pip 
Structure formed by the development of a fertile ovule; it contains an embryo and nutrient reserves that enable a new plant to grow.
exocarp 
Fruit’s outer layer, covering the mesocarp.
mesocarp 
Designates the whitish part of the rind of a citrus fruit.
juice sac 
Each of the small juice-filled pockets that combine to make up the fruit’s pulp.
seed 
Structure formed by the development of a fertile ovule; it contains an embryo and nutrient reserves that enable a new plant to grow.
wall 
Thin membrane separating the citrus fruit into segments.
rind 
Fruit’s outer layer covering the pulp, composed of an outer colored part and an inner part made of whitish tissue.
pulp 
Fleshy portion of the citrus fruit, composed of small juice-filled pockets in every segment.
zest 
Outer scented layer of the citrus fruit’s rind. It produces an essence used in baking and an essential oil.
segment 
Part of a citrus fruit surrounded by a thin membrane containing the pulp and seeds; each segment derives from separate ovaries within a single flower.